Question # 1

cos(3π/2 +θ) = _____;

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sinθ

cosθ

-sinθ

-cosθ

Another name of quadratic equation is

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Polynomial

2nd degree polynomial

Linear equation

simaltaneous equations

Roots of the equation x²- x = 2 are

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{2, -1}

{1, 0}

{2, 1}

{-2, 1}

The set {1,-1, i, -i} form a group under

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Addition

Multiplication

Subtraction

None

The integral of 3x⁵dx is:

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15 x⁴

x⁶/2

1/6x⁵

x⁵/ln3

If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then x^y-z. y^z-x. z^x-yeqals

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xyz

0

1

None of these

Cos-1 (-x) =

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-x

1/x

tan-1 x

π-cos-1 x

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0

1

If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =

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4

6

5

3

What is the period of cos 6x =?

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π/2

π/3

π/4

π

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2 b

2 a

2 ab

a + b

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