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

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

Factorize this question -Maths 9th

Description : Factorize this question -Maths 9th

Last Answer : (i) 9x2 - y2 = (3x)2 - (y)2 = (3x + y) (3x - y) (ii) (3 - x)2 - 36x2 = (3 - x)2 - (6x)2 = (3 - x + 6x) (3 - x - 6x) = (3 + 5x) (3 - 7x) (iii) (2x - 3y)2 - (3y + 4y)2 = (2x - 3y + ... + 7y) (iv) 16x4 - y4 = (4x2)2 - (y2)2 = (4x2 + y2) (4x2 - y2) = (4x2 + y2) (2x + y) (2x - y)

Factorize this question -Maths 9th

Description : Factorize this question -Maths 9th

Last Answer : (i) 9x2 - y2 = (3x)2 - (y)2 = (3x + y) (3x - y) (ii) (3 - x)2 - 36x2 = (3 - x)2 - (6x)2 = (3 - x + 6x) (3 - x - 6x) = (3 + 5x) (3 - 7x) (iii) (2x - 3y)2 - (3y + 4y)2 = (2x - 3y + ... + 7y) (iv) 16x4 - y4 = (4x2)2 - (y2)2 = (4x2 + y2) (4x2 - y2) = (4x2 + y2) (2x + y) (2x - y)

factorize x3-2x2-x+2 -Maths 9th

Description : factorize x3-2x2-x+2 -Maths 9th

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Factorize a^3-8b^3=64c^3+24abc -Maths 9th

Description : Factorize a^3-8b^3=64c^3+24abc -Maths 9th

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

Factorize 6x^4-6y^4 -Maths 9th

Description : Factorize 6x^4-6y^4 -Maths 9th

Last Answer : =6(x^4 - y^4) =6[(x^2)^2 - (y^2)^2] =6[(x^2 - y^2)(x^2 + y^2) [(a+b)(a-b)=a^2 - b^2] =6[(x+y)(x-y)(x^2 + y^2)]

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

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

Last Answer : Expand the following

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 =

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

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

Last Answer : Expand the following

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 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:

Factorize the following quadratic expressions : (a) `x^(2) + 5x + 6` (b) `x^(2)- 5x - 36` (c ) `2x^(2) + 5x - 18`

Description : Factorize the following quadratic expressions : (a) `x^(2) + 5x + 6` (b) `x^(2)- 5x - 36` (c ) `2x^(2) + 5x - 18`

Last Answer : Factorize the following quadratic expressions : (a) `x^(2) + 5x + 6` (b) `x^(2)- 5x - 36` (c ) `2x^(2) + 5x - 18`

How do you factorize x squared plus 7x?

Description : How do you factorize x squared plus 7x?

Last Answer : It is: x(x+7) when factorized

How do you factorize 12x-30?

Description : How do you factorize 12x-30?

Last Answer : 42

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??”

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)`?

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.

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)`.

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

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

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

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

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

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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

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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

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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

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

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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

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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.

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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

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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

the curved surface area of a cylinder is 154 cm. the total surface area of the cylinder is three times its curved surface area. find the volume of the cylinder. -Maths 9th

Description : the curved surface area of a cylinder is 154 cm. the total surface area of the cylinder is three times its curved surface area. find the volume of the cylinder. -Maths 9th

Last Answer : T.S.A = 3*154 = 462 cm² C.S.A = 154 cm² C.S.A = 2πrh T.S.A = 2πr(r+h) Now, In T.S.A = 2πrr + 2πrh 462 = 2πrr + 2πrh 462 = 2*22/7*r*r + 154 462 - 154 = 2*22/7*r*r 308*7/2*22 = r*r 49 = r*r R = 7 cm ... 7*h 154/44 = h 7/2 =h H = 3.5 cm or 7/2 cm Now volume = πrrh = 22/7 * 7* 7 *7/2 = 11*49 = 539 cm³

case study questions class 9 maths surface area and volume -Maths 9th

Description : case study questions class 9 maths surface area and volume -Maths 9th

Last Answer : Q. Read the source or text given below and answer the following questions: A conical circus tent has to be made with a cloth that is 5m wide, whose height is 24m, and the radius of the base is 7m. ... 4. Find the Curved Surface Area Answers: 1. Curved Surface Area 2. 550 m 3. Rs.3850 4.110m²

Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

Description : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

Last Answer : Given : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in the fig. These pieces are arranged ... length of coloured tape required = 30 cm (b) The values are : Happiness, beauty, Knowledge.

While discussing the properties of a parallelogram teacher asked about the relation between two angles x and y of a parallelogram as shown ... -Maths 9th

Description : While discussing the properties of a parallelogram teacher asked about the relation between two angles x and y of a parallelogram as shown ... -Maths 9th

Last Answer : (a) Yes , x < y is correct (b) Ð ADB =Ð DBC = y (alternate int. angles) since BC < CD (angle opp. to smaller side is smaller) there for, x < y (c) Truth value

Hameed has built a cubical water tank with lid for his house, with each other edge 1.5m long. -Maths 9th

Description : Hameed has built a cubical water tank with lid for his house, with each other edge 1.5m long. -Maths 9th

Last Answer : Edge of cubical tank = 1.5 m ∴ Area of 4 walls = 4 (side)² = 4(1.5)² m² = 4 x 225 = 9 m² Area of floor = (1.5)² = 2.25 m² ∴ Total surface area = 9 + 2.25 = 11.25 m² Edge of square tile = 25 m = 0.25 m² ∴ Area of 1 tile = (0.25)2 = .0625 m²

A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of all the small cubes. -Maths 9th

Description : A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of all the small cubes. -Maths 9th

Last Answer : Side of cube = 4 cm But cutting into 1 cm cubes, we get = 4 x 4 x 4 = 64 Now surface area of one cube = 6 x (1)² = 6 x 1=6 cm² and surface area of 64 cubes = 6 x 64 cm² = 384 cm²

Three equal cubes are placed adjacently in a row. Find the ratio of total surface area of the new cuboid to that of the sum of the surface areas of the three cubes. -Maths 9th

Description : Three equal cubes are placed adjacently in a row. Find the ratio of total surface area of the new cuboid to that of the sum of the surface areas of the three cubes. -Maths 9th

Last Answer : Let each side of a cube = a cm Then surface area = 6a² cm² and surface area of 3 such cubes = 3 x 6a² = 18a² cm² By placing three cubes side by side we get a cuboid whose ... + 3a²] = 14 a² ∴ Ratio between their surface areas = 14a² : 18a² = 7 : 9

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 m². -Maths 9th

Description : The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 m². -Maths 9th

Last Answer : Length of a room (l) = 5m Breadth (b) = 4 m and height (h) = 3 m ∴ Area of 4 walls = 2(l + b) x h = 2(5 + 4) x 3 = 6 x 9 = 54 m² and area of ceiling = l x b = 5 x ... ∴ Total area = 54 + 20 = 74 m2 Rate of white washing = 7.50 per m² ∴ Total cost = ₹74 x 7.50 = ₹555

Mary wants to decorate her ********* tree. She wants to place the tree on a wooden block covered with coloured paper with picture of Santa Claus on it. -Maths 9th

Description : Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden block covered with coloured paper with picture of Santa Claus on it. -Maths 9th

Last Answer : Length of box (l) = 80 cm Breadth (b) = 40 cm and height (h) = 20 cm ∴ Total surface area = 2(lb + bh + hl) = 2[80 x 40 + 40 x 20 + 20 x 80] cm² = 2[3200 + 800 + 1600] ... of one sheet = (40 cm)² = 1600 cm² ∴ No. of sheets required for the box = 11200 = 1600 = 7 sheets