Question # 1

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If A = {2m/m³= 8 , m€ Z} then A =

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{1,8,27}

{4}

(2,4,6}

{2,16,54}

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If f(x) = x²then f(2) is

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-2

2

4

-4

The mid point of the line joining the points P(x₁, y₁) and Q(x₂, y₂) is

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none of these

The foot of perpendicular from (α,β,γ) only y-axis is

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(α, 0, 0)

(0,β, 0)

(0, 0, γ)

(0, 0, 0)

Sum of all the four forth roots of unity is

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1

-1

i

0

If A is a set then any subset R of A x A is called

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relation on A

relation on B

relation from A to B

relation from B to A

6! = ______

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360

720

6.5.4

None of these

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The law of of sines

The law of tangents

The law of consines

None of these

sin (2π-θ)

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cosθ

sinθ

tanθ

-sinθ

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99th term of the series 2 + 7 + 14 + 23 + 34 + ..... is

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9998

9999

10000

None of these

If f (x)=a0 +a1x+a2x2+a3x3-----+0n-1xn-1+anxn then f(n) (x) is equal to

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n!

ann!

0

an

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

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2

-2

3

-3

The point of concurrency of the medians of the ΔABC is called its

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Orthocenter

Centriod

Circumcentre

Incentre

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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

Period of Tangent function is

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0°

-π

π

2π

The eccentricity of the parabola y²= -8x is

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-2

2

-1

1

Two quadratic equation in which xy term is missing and the coefficients of x²and y²are equal, give a linear equation by ______

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Addition

Subtraction

Multiplication

Division

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1

-1

0

I

In one hour, the minute hand of a clock turns through

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A dice is rolled. The probability that the dots on the top are greater than 4 is

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1/6

1/3

1/2

1

x = ________ is in the solution of 2x + 3 > 0

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1

-2

-3

-4

If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is

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cot(3π/2 -θ)=______;

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tanθ

cotθ

-tanθ

-cotθ

In R the left cancellation property w.r.t addition is

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Consider the equation px2 + qx + r = 0 where p,q,r are real The roots are equal in magnitude but opposite in sign when

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q = 0, r = 0,p ≠ 0

p = 0,qr≠ 0

r = 0,pq≠ 0

q = 0, pq≠ 0

The period sin²θis

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π²

π

2π

π/2

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