Expand the following : (3a-2b)3 -Maths 9th

Expand the following : (3a-2b)3 -Maths 9th
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Expand the following : (3a-2b)3 -Maths 9th

Description : Expand the following : (3a-2b)3 -Maths 9th

Last Answer : Expand the following

A reaction between the substances A and B has been found to give the following data: 3A + 2B -----> 2C + D?

Description : A reaction between the substances A and B has been found to give the following data: 3A + 2B -----> 2C + D?

Last Answer : My reaction is “HUH??”

Write the result after applyin componendo and dividendo to `3a^(2)+2b^(2):3a^(2)-2b^(2): :3c^(2)+2d^(2):3c^(2)-2d^(2)`.

Description : Write the result after applyin componendo and dividendo to `3a^(2)+2b^(2):3a^(2)-2b^(2): :3c^(2)+2d^(2):3c^(2)-2d^(2)`.

Last Answer : Write the result after applyin componendo and dividendo to `3a^(2)+2b^(2):3a^(2)-2b^(2): :3c^(2)+2d^(2):3c^(2)-2d^(2)`.

If (3a+2b) : (5a+7b) = 1:2 , then find a : b.

Description : If (3a+2b) : (5a+7b) = 1:2 , then find a : b.

Last Answer : If (3a+2b) : (5a+7b) = 1:2 , then find a : b.

The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if (a)a=b (b)3a=2b (c)ab=6 (d)2a=3b

Description : The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if (a)a=b (b)3a=2b (c)ab=6 (d)2a=3b

Last Answer : (c)ab=6

The polynomial p{x = x4 -2x3 + 3x2 -ax+3a-7 when divided by x+1 leaves the remainder 19. -Maths 9th

Description : The polynomial p{x = x4 -2x3 + 3x2 -ax+3a-7 when divided by x+1 leaves the remainder 19. -Maths 9th

Last Answer : p(x) is divided by x+ 2 =

The polynomial p{x = x4 -2x3 + 3x2 -ax+3a-7 when divided by x+1 leaves the remainder 19. -Maths 9th

Description : The polynomial p{x = x4 -2x3 + 3x2 -ax+3a-7 when divided by x+1 leaves the remainder 19. -Maths 9th

Last Answer : p(x) is divided by x+ 2 =

Factorize a^4+3a^2+4 -Maths 9th

Description : Factorize a^4+3a^2+4 -Maths 9th

Last Answer : NEED ANSWER

Factorize a^4+3a^2+4 -Maths 9th

Description : Factorize a^4+3a^2+4 -Maths 9th

Last Answer : This answer was deleted by our moderators...

The minimum value of the sum of real numbers a^(–5), a^(–4), 3a^(–3), 1, a^8 and a^10 with a > 0 is -Maths 9th

Description : The minimum value of the sum of real numbers a^(–5), a^(–4), 3a^(–3), 1, a^8 and a^10 with a > 0 is -Maths 9th

Last Answer : answer:

Prove that (sin A + sin 3A + sin 5A + sin7 A)/(Cos A + Cos3 A + cos5 A + cos7 A) = tan 4A. -Maths 9th

Description : Prove that (sin A + sin 3A + sin 5A + sin7 A)/(Cos A + Cos3 A + cos5 A + cos7 A) = tan 4A. -Maths 9th

Last Answer : answer:

When a + b + c + 3a^(1/3) b^(2/3) + 3a(2/3) b^(1/3) is divided by a^(1/3) + b^(1/3) + c^(1/3), what is the remainder ? -Maths 9th

Description : When a + b + c + 3a^(1/3) b^(2/3) + 3a(2/3) b^(1/3) is divided by a^(1/3) + b^(1/3) + c^(1/3), what is the remainder ? -Maths 9th

Last Answer : answer:

If log (a + c) + log (a – 2b + c) = 2 log (a – c), then a, b, c are in -Maths 9th

Description : If log (a + c) + log (a – 2b + c) = 2 log (a – c), then a, b, c are in -Maths 9th

Last Answer : (c) H.P.Given, log (a + c) + log (a – 2b + c) = 2 log (a – c) ⇒ log (a + c) (a – 2b + c) = log (a – c)2 ⇒ (a + c) (a – 2b + c) = (a – c)2⇒ 4ac = 2ba + 2bc ⇒ 2ac = b(a + c)∴ b = \(rac{2ac}{a+c}\) ⇒ a, b, c are in H.P.

If a = log12m and b = log18m, then (a-2b)/(b-2a) equals -Maths 9th

Description : If a = log12m and b = log18m, then (a-2b)/(b-2a) equals -Maths 9th

Last Answer : (a) log32\(rac{a-2b}{b-2a}\) = \(rac{ ext{log}_{12}\,m-\,2 ext{log}_{18}\,m}{ ext{log}_{18}\,m-\,2 ext{log}_{12}\,m}\)

For any two real number a b and , we defined aRb if and only if sin^2a + cos^2b = 1. The relation R is -Maths 9th

Description : For any two real number a b and , we defined aRb if and only if sin^2a + cos^2b = 1. The relation R is -Maths 9th

Last Answer : (d) an equivalence relationGiven, a R b ⇒ sin2a + cos2b = 1 Reflexive: a R a ⇒ sin2 a + cos2 a = 1 ∀ a ∈ R (True) Symmetric: a R b ⇒ sin2 a + cos2 b = 1 ⇒ 1 - cos2 a + 1 - sin2 b = 1 ⇒ sin2 b + ... + cos2 b + sin2 b + cos2 c = 2 ⇒ sin2 a + cos2 c = 1 ⇒ a R c (True)∴ R is an equivalence relation.

If a + b + c = 0, then what is the value of a^4 + b^4 + c^4 – 2a^2b^2 – 2b^2c^2 – 2c^2a^2 ? -Maths 9th

Description : If a + b + c = 0, then what is the value of a^4 + b^4 + c^4 – 2a^2b^2 – 2b^2c^2 – 2c^2a^2 ? -Maths 9th

Last Answer : answer:

If(x)/((b-c)(b+c-2a))=(y)/((c-a)(c+a-2b))=(z)((a-b)(a+b-2c)), what is the value of x + y + z ? -Maths 9th

Description : If(x)/((b-c)(b+c-2a))=(y)/((c-a)(c+a-2b))=(z)((a-b)(a+b-2c)), what is the value of x + y + z ? -Maths 9th

Last Answer : answer:

(2a)/(a+b)+(2b)/(b+c) + (2c)/(c+a) + ((b-c)(c-a)(a-b))/((b+c)(c+a)(a+b))equals -Maths 9th

Description : (2a)/(a+b)+(2b)/(b+c) + (2c)/(c+a) + ((b-c)(c-a)(a-b))/((b+c)(c+a)(a+b))equals -Maths 9th

Last Answer : answer:

What is the acute angle between the lines Ax + By = A + B and A(x – y) + B(x + y) = 2B ? -Maths 9th

Description : What is the acute angle between the lines Ax + By = A + B and A(x – y) + B(x + y) = 2B ? -Maths 9th

Last Answer : (c) 3\(x\) + y = 0 The equations of the two lines whose point of intersection is needed are: 2\(x\) - y = -5 ...(i) 5\(x\) + 3y = 4 ...(ii) 3 x Eqn (i) + Eqn (ii) ⇒ (6\(x\) - 3y ... , 3) with slope -3 is y - 3 = - 3 (\(x\) + 1) ⇒ y - 3 = -3\(x\) - 3 ⇒ 3\(x\) + y = 0.

If the sum of the squares of the distances of the point (x, y) from the points (a, 0) and (–a, 0) be 2b^2, then which of the following is correct ? -Maths 9th

Description : If the sum of the squares of the distances of the point (x, y) from the points (a, 0) and (–a, 0) be 2b^2, then which of the following is correct ? -Maths 9th

Last Answer : (d) (0, 0)Let the vertices of Δ ABC be given as: A(0, 0), B(3, 0) and C(0, 4) The orthocentre O is the point of intersection of the altitudes drawn from the vertices of Δ ABC on the opposite sides. Slope of BC = \(rac{ ... ⇒ y = 0 ...(ii) From (i), \(x\) = 0 Hence, the orthocentre is (0, 0).

Expand the following : (4a-b + 2c)2 -Maths 9th

Description : Expand the following : (4a-b + 2c)2 -Maths 9th

Last Answer : Expand the following

Expand the following : (4a-b + 2c)2 -Maths 9th

Description : Expand the following : (4a-b + 2c)2 -Maths 9th

Last Answer : Expand the following

Expand using suitable identity (-2x + 5y - 3z) to the whole square. -Maths 9th

Description : Expand using suitable identity (-2x + 5y - 3z) to the whole square. -Maths 9th

Last Answer : Solution :-

If the roots of the equation (b – c)x2 + (c – a)x + (a – b) = 0 are equal, then prove that 2b = a + c. -Maths 10th

Description : If the roots of the equation (b – c)x2 + (c – a)x + (a – b) = 0 are equal, then prove that 2b = a + c. -Maths 10th

Last Answer : following is the equation of 2b = a+c =

How do I grow hollyhocks in zone 3a?

Description : How do I grow hollyhocks in zone 3a?

Last Answer : You can take seeds from the flower after it dies off and replant in the spring when the danger of frost has passed.

If `(3a+4b):(3a-4b)=(3c+8d):(3c-8d),` then which of the following is true?

Description : If `(3a+4b):(3a-4b)=(3c+8d):(3c-8d),` then which of the following is true?

Last Answer : If `(3a+4b):(3a-4b)=(3c+8d):(3c-8d),` then which of the following is true? A. ad=bc B. 2ad=bc C. 2ab=cd D. ab=cd

If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?

Description : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?

Last Answer : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?

If ` a/b = c/d = e/f = 2/5`, then ` (3a+4c+9e)/(3b+4d+9f) = ` _________ .

Description : If ` a/b = c/d = e/f = 2/5`, then ` (3a+4c+9e)/(3b+4d+9f) = ` _________ .

Last Answer : If ` a/b = c/d = e/f = 2/5`, then ` (3a+4c+9e)/(3b+4d+9f) = ` _________ .

If ` a : b =2 : 3 ," then find "(3a - b) : ( 2a+ 3b)`.

Description : If ` a : b =2 : 3 ," then find "(3a - b) : ( 2a+ 3b)`.

Last Answer : If ` a : b =2 : 3 ," then find "(3a - b) : ( 2a+ 3b)`.

What is 3a-1-a-2a plus 3?

Description : What is 3a-1-a-2a plus 3?

Last Answer : It is then 2 when all terms are added together

What is 3a squared when a equals to -3?

Description : What is 3a squared when a equals to -3?

Last Answer : 6

What charge do group 13(3A) elements when in an ionic bond?

Description : What charge do group 13(3A) elements when in an ionic bond?

Last Answer : The valence is 3.

3a plus 3b plus ax plus bx?

Description : 3a plus 3b plus ax plus bx?

Last Answer : 6a square plus b square

4a - a x 3a + 7a?

Description : 4a - a x 3a + 7a?

Last Answer : 30

Which of the listed conditions occur when '4th point lower' is selected on the winch shown in the illustration? EL-0102 A. Master switch contacts '3', '4', '6', '8', '9', & '10' close. B. Contactors '2, 3, & 4M' and '1A' pick up. C. Master switch contacts '5', '6', '7', '8', and '9' close. D. Contactors '1 & 3M' and '1, 2, & 3A' pick up.

Description : Which of the listed conditions occur when '4th point lower' is selected on the winch shown in the illustration? EL-0102 A. Master switch contacts '3', '4', '6', '8', '9', & '10' close. B. Contactors '2, 3, & 4M' and ' ... , '7', '8', and '9' close. D. Contactors '1 & 3M' and '1, 2, & 3A' pick up.

Last Answer : Answer: B

Your Western Electric 3A test set meter reading is -23 dBm at at test point level of -8 dB. This is ______ dBrnc0. A. 75 B. 29 C. 30 D. 31

Description : Your Western Electric 3A test set meter reading is -23 dBm at at test point level of -8 dB. This is ______ dBrnc0. A. 75 B. 29 C. 30 D. 31

Last Answer : A. 75

Reading a 58 dBrnC on your Western Electric 3A test set at a +7 test point is equal to ______ dBrnc0. A. 58 B. 51 C. 65 D. 27

Description : Reading a 58 dBrnC on your Western Electric 3A test set at a +7 test point is equal to ______ dBrnc0. A. 58 B. 51 C. 65 D. 27

Last Answer : B. 51

Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10 -7 order) a) 1 b) 10 c) 100 d) 0.1

Description : Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10 -7 order) a) 1 b) 10 c) 100 d) 0.1

Last Answer : a) 1

Find the magnetic flux density of a finite length conductor of radius 12cm and current 3A in air( in 10 -6 order) a) 4 b) 5 c) 6 d) 7

Description : Find the magnetic flux density of a finite length conductor of radius 12cm and current 3A in air( in 10 -6 order) a) 4 b) 5 c) 6 d) 7

Last Answer : b) 5

The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is (A) 0 (B) 1 (C) 2 (D) 3

Description : The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is (A) 0 (B) 1 (C) 2 (D) 3

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The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is (A) F/A (B) F/2A (C) 3F/2A (D) 2F/3A

Description : The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at  the neutral axis, is  (A) F/A (B) F/2A (C) 3F/2A (D) 2F/3A

Last Answer : (C) 3F/2A

The result of adding hexadecimal number A6 to 3A is (A) DD. (B) E0. (C) F0. (D) EF.

Description : The result of adding hexadecimal number A6 to 3A is (A) DD. (B) E0. (C) F0. (D) EF.

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Which is the latest satellite of India placed in the geosynchronous orbit ? (1) INSAT-2D (2) INSAT-3A (3) INSAT-4A (4) Kalpana

Description : Which is the latest satellite of India placed in the geosynchronous orbit ? (1) INSAT-2D (2) INSAT-3A (3) INSAT-4A (4) Kalpana

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If the mean of P, Q,R is A and PQ + QR + RP =0, then the mean of p^2,Q^2,R^2 is. A) 2A^2 B) 4A^2 C) A^2 D) 3A^2

Description : If the mean of P, Q,R is A and PQ + QR + RP =0, then the mean of p^2,Q^2,R^2 is. A) 2A^2 B) 4A^2 C) A^2 D) 3A^2

Last Answer : D) We have (P + Q + R)/3 = A P+Q+R = 3A (P+Q+R)^2 = 9A^2 P^2+Q^2+R^2 + 2 (PQ + QR + PR) = 9A^2 P^2+Q^2+R^2 = 9A^2 Required mean = (P^2+Q^2+R^2)/3 = 9A^2/3= 3A^2

An emf of 120 V causes a current of 3A to flow in a circuit how much energy is supplied by the source in..

Description : An emf of 120 V causes a current of 3A to flow in a circuit how much energy is supplied by the source in 12 seconds. A. 4130 J B. 4310 J C. 4320 J D. None of these 

Last Answer : An emf of 120 V causes a current of 3A to flow in a circuit how much energy is supplied by the source in 12 seconds.   4320 J

I live in Zone 2b is my Serengeti Yellow NEMESIA a perennial

Description : I live in Zone 2b is my Serengeti Yellow NEMESIA a perennial

Last Answer : hardy zone 9 and up.......rest are annual.

5(4a)+5(2b)+5(-7)?

Description : 5(4a)+5(2b)+5(-7)?

Last Answer : 20a+10b-35

For the given reaction , `A(g) rarr 2B(g) , Delta_(r)H= 30 kJ//"mole" Delta_(r)S = 150 J//mol` at `300 K` If `C_(P,A) = 20 J//K mol` and `C_(P,B) = 20

Description : For the given reaction , `A(g) rarr 2B(g) , Delta_(r)H= 30 kJ//"mole" Delta_(r)S = 150 J//mol` at `300 K` If `C_(P,A) = 20 J//K mol` and `C_(P,B) = 20

Last Answer : For the given reaction , `A(g) rarr 2B(g) , Delta_(r)H= 30 kJ//"mole" Delta_(r)S = 150 J//mol` at ... G` is negative D. At `T = 200, Delta G` is zero

Let `a, b, c > 0` such that `a>b>c and a+c> 2b.` If `In(a + c) + In(a - 2b + c) = 2 In(a -c),` then which of the following relation is(are) correct?

Description : Let `a, b, c > 0` such that `a>b>c and a+c> 2b.` If `In(a + c) + In(a - 2b + c) = 2 In(a -c),` then which of the following relation is(are) correct?

Last Answer : Let `a, b, c > 0` such that `a>b>c and a+c> 2b.` If `In(a + c) + In(a - 2b + c) = 2 In(a -c),` then ... = (b-c)/(a-b)` D. `b^(2) = a^(2) +c^(2)`

In the reaction , `4A+2B+3CtoA_(4)B_(2)C_(3)` what will be the number of moles of product formed , starting from 1 mole of A,06 mole of B and 0.72 mol

Description : In the reaction , `4A+2B+3CtoA_(4)B_(2)C_(3)` what will be the number of moles of product formed , starting from 1 mole of A,06 mole of B and 0.72 mol

Last Answer : In the reaction , `4A+2B+3CtoA_(4)B_(2)C_(3)` what will be the number of moles of product formed , starting from 1 ... A. 0.25 B. 0.3 C. 2.4 D. 0.24