Question # 1

There are 16 point in a plane, in which 6 are collinear. how many lines can be drawn by joining these points?

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10

66

71

106

If f(x) = x²- x then f(2) is

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4

6

2

0

A relation in which the equality is true for all values of the unknown is called ______

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An identity

An equation

A polynomial

None of these

If the function y=2x -3, what is the preimage of 11?

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11

7

5

2

The velocity of a particle moving along a straight line is given by v = 3t + t². The acceleration of the particle after 4 seconds from the start is

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4

11

26

None

The square matrix A is skew Hermitian when (A)'=

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A

A'

-A

A

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-1

0

1

None of these

Period of sin x is

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Domain of cot x is ______

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Range of 3 sin x is ______

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[ -3, 3]

[-1, 1]

R

None of these

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range of f

domain of f

both (a) and (b)

none of these

y=-a is the equation of the directrix of

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y2 =4ax

x2=-4ay

x2=4ay

y2=-4ax

The set {Z\{0}} is group w.r.t

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Addition

Multiplication

Division

Subtraction

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If A(x₁, y₁) , B(x₂, y₂) and C(x₃, y₃) are the vertices of a triangle then its centroid is

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If S is a sample space and event set E =Φ then P(E) is

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>0

1

<1

0

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16

None of these

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a²b²c²

4a²b²c²

4abc

None

If s = 2t³- 3t²+ 15t - 8 is the equation of motion of a particle, then its initial velocity is

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8

15

-6

None

If a_n= 2n -3, write the first four terms

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-3, -1, 1, 3

1, 3, 5, 7

-1, 1, 3, 5

None of these

The equation of the directrix of the parabola x²= 4ay is

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x + a = 0

x - a = 0

y + a = 0

y - a = 0

The general equation of a circle is

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Which element is the additive inverse of (a, b) in Complex numbers?

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(a, 0)

(0, b)

(a, b)

(-a, -b)

The eccentricity of parabola is:

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1

0

Greater than 1

Less than 1

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General solution of tan 5θ= cot 2θis

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cos(a-β) = ______;

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sin a cosβ + cos a sinβ

sin a cos β - cos a sinβ

cos a cos β + sin a sinβ

cos a cosβ - sin a sinβ

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tanθ/2

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The eccentricity of the conic 9x²- 16y²= 144 is

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4/5

5/4

4/3

3/4

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