Question # 1

2cos2 a/2 =______;

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1+sina

1-sina

1+cosa

1-cosa

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-2x cos x²

-2x²sin x²

-x²sin x

-2x²sin x²

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Natural numbers

Whole numbers

Integers

Rational numbers

In quadratic equation f(x) = ax²,if a >0, then the graph of parabola

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Opens up

Opens down

close up

symmetric w.r.t.x.axis

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1

-1

-1/2

1/2

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1

5

7

9

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12

6

8

none of these

The sum of the cubes of three consecutive natural number is divisible by

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9

6

5

10

Rank of matrix [1 3 5 0] is

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1

3

2

4

The quadratic formula is

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Cos 2x = sin 4y

Cos 4y = cos 2x

Cos 3y = sin 4x

None of these

The centre fo the circle x²+ y²+ 12x -10 = 0 is

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(12, -10)

(6, -5)

(-12, 10)

(-6, 5)

Multiplicative inverse of "1" is

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+- 1

0

1

None of these

Equation of the chord of contact to the tangents drawn from (-3,4) to the circle x2 + y2 = 21

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-3x + 4y =21

4x - 3x = 0

-3x + 4y = 25

None of these

x = ________ is in the solution of 2x - 3 < 0

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2

-2

3

4

If n is any positive integer then 2ⁿ> 2(n + 1) is true for all

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Polynomial

Equation

Improper rational fraction

Proper rational fraction

Unit vector in the positive direction of x-axis is

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Arithmetic mean between 14 and 18 is

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16

17

15

32

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sec 5x + c

- sec 5x + c

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Two tangents drawn from (2,3) to the circle x2+y2 =9 are

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Real and distinct

Imaginary

Real and coincident

None of these

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

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Addition

Multiplication

Subtraction

None

Sum of two quantities is at least 20 is denoted by

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x +y =20

x +y≥ 20

x +y≠ 20

x +y≤20

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none of these

cos h²x + sin h² x

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an even function

an odd function

an even and implicit function

neither even nor a odd

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Which one is a pair of allied angles

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(180° -θ)

(180° -θ,180° +θ)

(180° +θ)

None of these

The distance of the point (2, -3) from x-axis is

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-2

-3

2

3

The two different parts of the hyperbola are called its

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Vertices

Directrices

Nappes

Branches

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

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