What do you mean by Symmetric Expression ? -Maths 9th

What do you mean by Symmetric Expression ? -Maths 9th
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Check whether the relation R defined in the set {1, 2, 3, 4, 5, 6} as R = {(a, b): b = a + 1} is reflexive, symmetric or transitive. -Maths 9th

Description : Check whether the relation R defined in the set {1, 2, 3, 4, 5, 6} as R = {(a, b): b = a + 1} is reflexive, symmetric or transitive. -Maths 9th

Last Answer : Reflexive: R = {(a, b) : b = a +1} = {(a, a + l) : a, a + 1∈{l, 2, 3, 4, 5, 6}} = {(1, 2), (2, 3), (3, 4), (4, 5), (5, 6)} ⇒ R is not reflexive since (a, a) ∉R for all a. Symmetric: R is not symmetric as (a ... as (a, b) ∈ R and (b, c) ∈ R but (a, c) ∉ R e.g., (1, 2) ∈ R (2, 3) ∈ R but (1, 3) ∉R

Which of the following relations is only symmetric? -Maths 9th

Description : Which of the following relations is only symmetric? -Maths 9th

Last Answer : (c) “is perpendicular to” on a set of a coplanar lines(a) Let a, b, c ∈ A where A is a set of real numbers. Then R = {(a, b) : a ≤ b, a, b ∈ A} is : Reflexive: a ≤ a ⇒ (a, a) ∈ R (Yes) Symmetric: a ≤ b ⇒ (a, b) ∈ R, but a ≤ b ⇒ a < b or a = b ⇒ b = a but b \( ot

Give possible expression for the length and breadth of the rectangle whose area is given by 4a2 +4a - 3. -Maths 9th

Description : Give possible expression for the length and breadth of the rectangle whose area is given by 4a2 +4a - 3. -Maths 9th

Last Answer : Given, area of rectangle = 4a2 + 6a-2a-3 = 4a2 + 4a – 3 [by splitting middle term] = 2a(2a + 3) -1 (2a + 3) = (2a – 1)(2a + 3) Hence, possible length = 2a -1 and breadth = 2a + 3

Give possible expression for the length and breadth of the rectangle whose area is given by 4a2 +4a - 3. -Maths 9th

Description : Give possible expression for the length and breadth of the rectangle whose area is given by 4a2 +4a - 3. -Maths 9th

Last Answer : Given, area of rectangle = 4a2 + 6a-2a-3 = 4a2 + 4a – 3 [by splitting middle term] = 2a(2a + 3) -1 (2a + 3) = (2a – 1)(2a + 3) Hence, possible length = 2a -1 and breadth = 2a + 3

If a, b, c are the sides of a non-equilateral triangle, then the expression (b + c – a) (c + a – b) (a + b – c) – abc is -Maths 9th

Description : If a, b, c are the sides of a non-equilateral triangle, then the expression (b + c – a) (c + a – b) (a + b – c) – abc is -Maths 9th

Last Answer : answer:

The minimum value of the expression ((3b+4c)/a)+((4c+a)/3b)+((a+3b)/4c) -Maths 9th

Description : The minimum value of the expression ((3b+4c)/a)+((4c+a)/3b)+((a+3b)/4c) -Maths 9th

Last Answer : answer:

The expression (tan A)(1-cot A)+(cot A)(1-tan A) can be written as -Maths 9th

Description : The expression (tan A)(1-cot A)+(cot A)(1-tan A) can be written as -Maths 9th

Last Answer : answer:

For what value of m will the expression 3x^3 + mx^2 + 4x – 4m be divisible by x + 2 ? -Maths 9th

Description : For what value of m will the expression 3x^3 + mx^2 + 4x – 4m be divisible by x + 2 ? -Maths 9th

Last Answer : f(x) = 3x3 + mx2 + 4x – 4m f(x) is divisible by (x + 2) if f(–2) = 0 Now f(–2) = 3(–2)3 + m(–2)2 + 4(–2) – 4m = – 24 + 4m – ... ; 4m = – 32 ≠ 0 ∴ No such value of m exists for which (x + 2) is a factor of the given expression

For what value of k, will the expression (3x^3 – kx^2 + 4x + 16) be divisible by (x – k/2) ? -Maths 9th

Description : For what value of k, will the expression (3x^3 – kx^2 + 4x + 16) be divisible by (x – k/2) ? -Maths 9th

Last Answer : Given f(x) = 3x³ - kx² + 4x + 16. Since (x - k/2) is a factor of polynomial. This means x = k/2 is the zero of the given polynomial. ⇒ f(k/2) = 3(k/2)³ - k(k/2)² + 4(k/2) + 16 ⇒ 0 ... - 4k + 32) + 4(k² - 4k + 32) ⇒ 0 = (k + 4)(k² - 4k + 32) ⇒ k = -4.

If the expression ax^2 + bx + c is equal to 4, when x = 0, leaves a remainder 4 when divided by x + 1 and leaves a -Maths 9th

Description : If the expression ax^2 + bx + c is equal to 4, when x = 0, leaves a remainder 4 when divided by x + 1 and leaves a -Maths 9th

Last Answer : Given exp. f(x) = ax2 + bx + c ∴ When x = 0, a.0 + b.0 + c = 4 ⇒ c = 4. The remainders when f(x) is divided by (x + 1) and (x + 2) respectively are f(–1) and f(–2). ∴ f( ... 2b = 2 ...(ii) Solving (i) and (ii) simultaneously we get, a = 1, b = 1.

If the expression (px^3 + x^2 – 2x – q) is divisible by (x – 1) and (x + 1), then the values of p and q respectively are ? -Maths 9th

Description : If the expression (px^3 + x^2 – 2x – q) is divisible by (x – 1) and (x + 1), then the values of p and q respectively are ? -Maths 9th

Last Answer : Let f(x)=px3+x2−2x−q Since f(x) is divisible by (x−1) and (x+1) so x=1 and −1 must make f(x)=0. Therefore, p+1−2−q=0, i.e., p−q=1; and −p+1+2−q=0, i.e., p+q=3 Thus p=2 and q=1

The values of a, b and c respectively for the expression f(x) = x^3 + ax^2 + bx + c, if f(1) = f(2) = 0 and f(4) = f(0) are : -Maths 9th

Description : The values of a, b and c respectively for the expression f(x) = x^3 + ax^2 + bx + c, if f(1) = f(2) = 0 and f(4) = f(0) are : -Maths 9th

Last Answer : f′(x)=3x2+2ax+6 f(x)⇒f′(x)≥0 3x2+2ax+6≥0 ⇒D≤0 4[a2−3b]≤0 a2≤3b ∴P=6×6×6(16)×6​=3616​=94​ Answer.

What is the least value of the expression 2 log10x – logx (1/100) for x > 1 ? -Maths 9th

Description : What is the least value of the expression 2 log10x – logx (1/100) for x > 1 ? -Maths 9th

Last Answer : answer:

By symmetric key encryption we mean a. one private key is used for both encryption and decryption b. private and public key used are symmetric c. only public keys are used for encryption d. only symmetric key is used for encryption

Description : By symmetric key encryption we mean a. one private key is used for both encryption and decryption b. private and public key used are symmetric c. only public keys are used for encryption d. only symmetric key is used for encryption

Last Answer : D

What species, externally, do not symmetric, or nearly so, left and right sides?

Description : What species, externally, do not symmetric, or nearly so, left and right sides?

Last Answer : flounders

Which of the following is true for the stiffness matrix (K)? a.K is a banded matrix b.K is un-symmetric c.K is an un-banded matrix d.none of the above

Description : Which of the following is true for the stiffness matrix (K)? a.K is a banded matrix b.K is un-symmetric c.K is an un-banded matrix d.none of the above

Last Answer : a.K is a banded matrix

Axis-Symmetric element is Element a.1D b.2D c.3D d.4D

Description : Axis-Symmetric element is Element a.1D b.2D c.3D d.4D

Last Answer : b.2D

From below, choose the condition for the axisymmetric element. a.Symmetric about axis b.Boundary conditions are symmetric about an axis c.Loading conditions are symmetric about an axis d.All the above

Description : From below, choose the condition for the axisymmetric element. a.Symmetric about axis b.Boundary conditions are symmetric about an axis c.Loading conditions are symmetric about an axis d.All the above

Last Answer : d.All the above

What is Symmetric Multi Processing System ?

Description : What is Symmetric Multi Processing System ?

Last Answer : Symmetric Multi Processing system ( Symmetric Multi Processing system) is a system most commonly used where there are multiple processors and each processor uses a different operating system. ... - a) Homogeneous multiprocessor b) Heterogeneous multiprocessor c) Air processor d) Pipeline processor

What is symmetric distribution?

Description : What is symmetric distribution?

Last Answer : It is a probability distribution in which the probability of therandom variable being in any interval on one side of the mean(expected value) is the same as for the equivalent interval on theother side of the mean.

The Symmetric Property of Equality states that any number is equal to itself.?

Description : The Symmetric Property of Equality states that any number is equal to itself.?

Last Answer : FALSE

A 45-year-old surgeon has developed symmetric early morning stiffness in her hands. She wishes to take a nonsteroidal anti-inflammatory drug to relieve these symptoms and wants to avoid gastrointestinal side effects. Which one of the following drugs is most appropriate? (a) Aspirin (b) Celecoxib (c) Ibuprofen (d) Indomethacin (e) Piroxicam

Description : A 45-year-old surgeon has developed symmetric early morning stiffness in her hands. She wishes to take a nonsteroidal anti-inflammatory drug to relieve these symptoms and wants to avoid gastrointestinal side ... appropriate? (a) Aspirin (b) Celecoxib (c) Ibuprofen (d) Indomethacin (e) Piroxicam

Last Answer : Ans: B

(2) Exclusion Principle of Pauli Explanation: The Pauli exclusion principle is the quantum mechanical principle that no two identical fermions (particles with half-integer spin) may occupy the same quantum state simultaneously. A more rigorous statement is that the total wave function for two identical fermions is anti-symmetric with respect to exchange of the particles.

Description : (2) Exclusion Principle of Pauli Explanation: The Pauli exclusion principle is the quantum mechanical principle that no two identical fermions (particles with half-integer spin) may occupy the same ... function for two identical fermions is anti-symmetric with respect to exchange of the particles.

Last Answer : The three elements most needed in common fertilizers are – (1) Sulphur, Phosphorous and Sodium (2) Nitrogen, Phosphorous and Sodium (3) Phosphorous, Sodium and Nitrogen (4) Calcium, Phosphorous and Potassium

“In reality all the s-orbitals are spherically symmetric.” What does this represent?

Description : “In reality all the s-orbitals are spherically symmetric.” What does this represent?

Last Answer : Ans. The probable density of an electron in s-orbital is equally distributed at all coordinates in space.

Which of the following is true about Stiffness matrix a. Diagonal matrix b. Symmetric matrix c. Positive Definite d. All of the above

Description : Which of the following is true about Stiffness matrix a. Diagonal matrix b. Symmetric matrix c. Positive Definite d. All of the above

Last Answer : d. All of the above

The mass, stiffness, and damping matrices of a two-degree-of-freedom system are symmetric.

Description : The mass, stiffness, and damping matrices of a two-degree-of-freedom system are symmetric.

Last Answer : True

SMP Stands for: a. System multiprocessor b. Symmetric multiprocessor c. Both d. None

Description : SMP Stands for: a. System multiprocessor b. Symmetric multiprocessor c. Both d. None

Last Answer : b. Symmetric multiprocessor

SIMD stands for: a. System instruction multiple data b. Single instruction multiple data c. Symmetric instruction multiple data d. Scale instruction multiple data

Description : SIMD stands for: a. System instruction multiple data b. Single instruction multiple data c. Symmetric instruction multiple data d. Scale instruction multiple data

Last Answer : b. Single instruction multiple data

Symmetric key cryptography was the only kind of encryption publicly known until: a) July 195 b) June, 1976c) June 1988d) None of These

Description : Symmetric key cryptography was the only kind of encryption publicly known until: a) July 195 b) June, 1976 c) June 1988 d) None of These

Last Answer : b) June, 1976

Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Description : Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Last Answer : a) Encryption

Symmetric key cryptography was the only kind of encryption publicly known until: a) July 195 b) June, 1976 c) June 1988 d) None of These

Description : Symmetric key cryptography was the only kind of encryption publicly known until: a) July 195 b) June, 1976 c) June 1988 d) None of These

Last Answer : b) June, 1976

Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Description : Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Last Answer : a) Encryption

Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Description : Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Last Answer : stateless

Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Description : Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Last Answer : stateless

Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Description : Which of the following is the property of the composable component? a) stateful b) stateless c) symmetric d) all of the mentioned

Last Answer : stateless

.When a discrete time signal is said to be symmetric (or) anti symmetric?

Description : .When a discrete time signal is said to be symmetric (or) anti symmetric?

Last Answer : A real valued signal x(n) is called symmetric (even) if x(-n)=x(n). A real valued signal x(n) is called anti symmetric (odd) if x(-n)= -x(n).

Public key cryptography is also known as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐cryptography. a. Private key b. Symmetric c. Asymmetric d. None

Description : Public key cryptography is also known as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐cryptography. a. Private key b. Symmetric c. Asymmetric d. None

Last Answer : c. Asymmetric

Private Key cryptography is also known as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐cryptography. a. Public key b. Symmetric c. Asymmetric d. None

Description : Private Key cryptography is also known as ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐cryptography. a. Public key b. Symmetric c. Asymmetric d. None

Last Answer : b. Symmetric

Public key system is useful because a. it uses two keys. b. there is no key distribution problem as public key can be kept in a commonly accessible database. c. private key can be kept secret. d. it is a symmetric key system.

Description : Public key system is useful because a. it uses two keys. b. there is no key distribution problem as public key can be kept in a commonly accessible database. c. private key can be kept secret. d. it is a symmetric key system. 

Last Answer : b. there is no key distribution problem as public key can be kept in a commonly accessible database.  

Triple DES a. is a symmetric key encryption method b. guarantees excellent security c. is implementable as a hardware VLSI chip d. is public key encryption method with three keys.

Description : Triple DES a. is a symmetric key encryption method b. guarantees excellent security c. is implementable as a hardware VLSI chip d. is public key encryption method with three keys. 

Last Answer : b. guarantees excellent security  

DES (i) is a symmetric key encryption method (ii)guarantees absolute security (iii) is implementable as hardware VLSI chip (iv) is a public key encryption method a. i and ii b. ii and iii c. i and iii d. iii and iv

Description : DES (i) is a symmetric key encryption method (ii)guarantees absolute security (iii) is implementable as hardware VLSI chip (iv) is a public key encryption method a. i and ii b. ii and iii c. i and iii d. iii and iv

Last Answer : c. i and iii 

Binary symmetric channel uses (A) Half duplex protocol (B) Full duplex protocol (C) Bit oriented protocol (D) None of the above

Description : Binary symmetric channel uses (A) Half duplex protocol (B) Full duplex protocol (C) Bit oriented protocol (D) None of the above

Last Answer : (A) Half duplex protocol

The relation "divides" on a set of positive integers is .................. (A) Symmetric and transitive (B) Anti symmetric and transitive (C) Symmetric only (D) Transitive only

Description : The relation "divides" on a set of positive integers is .................. (A) Symmetric and transitive (B) Anti symmetric and transitive (C) Symmetric only (D) Transitive only

Last Answer : (B) Anti symmetric and transitive Explanation: The ‘divide’ operation is antisymmetric because if a divides b does not necessarily implies that b divides a. If a divides b and b divides c then a divides c. So, it is transitive as well.

Find the false statement: (A) In Modern Cryptography, symmetric key algorithms use same key both for Encryption and Decryption. (B) The Symmetric cipher DES (Data Encryption Standard) was widely used in the industry for security product. (C) The AES (Advanced Encryption Standard) cryptosystem allows variable key lengths of size 56 bits and 124 bits. (D) Public key algorithms use two different keys for Encryption and Decryption.

Description : Find the false statement: (A) In Modern Cryptography, symmetric key algorithms use same key both for Encryption and Decryption. (B) The Symmetric cipher DES (Data Encryption Standard) was widely used ... and 124 bits. (D) Public key algorithms use two different keys for Encryption and Decryption.

Last Answer : (C) The AES (Advanced Encryption Standard) cryptosystem allows variable key lengths of size 56 bits and 124 bits.

Which of the following property/ies a Group G must hold, in order to be an Abelian group? (a) The distributive property (b) The commutative property (c) The symmetric property Codes: (A) (a) and (b) (B) (b) and (c) (C) (a) only (D) (b) only

Description : Which of the following property/ies a Group G must hold, in order to be an Abelian group? (a) The distributive property (b) The commutative property (c) The symmetric property Codes: (A) (a) and (b) (B) (b) and (c) (C) (a) only (D) (b) only

Last Answer : Answer: D

find the mean of first five multiples of 10 -Maths 9th

Description : find the mean of first five multiples of 10 -Maths 9th

Last Answer : This is the correct one...

The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Description : The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Last Answer : Here's ur answer..

2 . If the mean of the following distribution is 6 . Find the value of p ? x 2 4 6 10 P + 5 f 3 2 3 1 2 -Maths 9th

Description : 2 . If the mean of the following distribution is 6 . Find the value of p ? x 2 4 6 10 P + 5 f 3 2 3 1 2 -Maths 9th

Last Answer : Here's ur answer...

Mean of 20 observations is 17. If in the observations, observation 40 is replaced by 12, find the new mean. -Maths 9th

Description : Mean of 20 observations is 17. If in the observations, observation 40 is replaced by 12, find the new mean. -Maths 9th

Last Answer : Since mean of 20 observations is 17 Sum of the 20 observations = 17 x 20 = 340 New sum of 20 observations = 340 – 40 + 12 = 312 New mean=312 / 20 =15.6