Question # 1

The third term of a G.P. is the square of first term. If the second term is 8, then the 6th term is

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120

124

128

132

The roots of (b-c)x2+(c-a) x+a-b=0 are equal if

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2b = a+c

2a = b+c

2c = a+b

a + b + c =0

The sum of all even numbers less than 100 is

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2450

2352

2272

2468

Write down the power set of {9, 11}

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The sum of even coefficient in the binomial expansion is

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2ⁿ⁺¹

2ⁿ

2^n-1

2n

f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

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0

-1-w²

If a set S contains n elements then P (S) has ........ number of elements

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2ⁿ

2ⁿ²

2.n

n²

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The exact degree value of the function sin-1( -√3/2) is

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70^ο

50^ο

90^ο

60^ο

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a.a^-1 = a^-1.a = 1 is a

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Commutative law of multiplication

Multiplicative identity

Associative law of multiplication

Multiplicative inverse

i²=

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1

2

-1

0

What is the conjugate of -7 -2i ?

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-7 + 2i

7 +2i

7 -2i

√53

∫Sec² (ax + b) dx is equal to:

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tan² (ax + b)

1/a tan² (ax + b)

1/atan (ax +b)

tan (ax + b)

The parametric equation of a curve are x = t², y = t³then

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7²ⁿ+ 3^n-1. 2^3n-3is divisible by

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24

25

9

13

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

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8

9

10

11

The vertex of the parabola (xsin a -ycos a)2 =4a(xcos a +ysin a) lies at

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(acos a,asin a)

(a,0)

(cos a,sin a)

(0,0)

If x,y are two positive distinct numbers then

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A>G>H

A<G<H

A=G=H

None of these

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cos x

sec x tan x

sec²x

-cosec²x

The solution set of the equation 4 cos²x - 3 + 0 is

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none of these

Sin^-1(-x)=

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Cos^-11/x

- Sin^-1X

Cot^-1X

None of these

Arithmetic mean between x - 3 and x + 5 is

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x + 1

x + 2

x + 3

x + 4

An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is

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2 mn

1/2 mn

mn

mn²

If A is such that a,A,B are in A.P then A is called

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A.M

Common ratio

Common difference

None of these

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A matrix in which the number of rows is equal to the number of columns is called a

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Diagonal matrix

Rectangular matrix

Square matrix

Scalar matrix

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(a-1)-1 =

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a-1

a

-a

None of above

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