Question # 1

The additive inverse of 0 is

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1

-1

0

Does not exist

5th term of a G.P. is 2, then the product of first 9 terms is

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256

128

512

None of these

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1

-1

How many 3 digit numbers can be formed by using each one of the digit 2, 3, 5, 7, 9 only once?

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15

24

60

120

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2

4

8

12

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2 x 2

2 x 3

3 x 2

3 x 3

The period of the function csc x/4 us

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4x

π/4

8π

π/8

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

There are 25 tickets bearing number from 1 to 25. One ticket is drawn at random. The probability that the number on it is a multiple of 5 or 6 is

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7 / 25

9 / 25

11 / 25

None of these

If Z₁ = 1+ i, Z₂ = 2+3i , then |Z₁ -Z₂| =?

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√5

√7

-1-2i

√3

Sequence also called..............

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Series

Function

progressions

Elements

The distance between the points A(3,1) and B(-2,-4) is

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5

25

10

A box contains 10 red 30 white and 20 black marbles When a marble is drawn at random the probability that it is either red or white is

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1/6

1/3

1/2

2/3

Power set of X i.e P(X)..........under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

The equation of the line perpendicular to x- axis and passing through (-5,3) is

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y -3 =0

x+ 3 =0

y- 3 =∞

x +5 =0

If A is a non-singular matrix then adj A is

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Non-singular

Symmetric

Singular

Non defined

If n is any positive integer then n! > n²for

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c = 0

c = -1

c = -2

c = 1

The sum of the roots of the equation x2 -6x +2 = 0 is

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-6

2

-2

6

Cos 0° = ______

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-1

0

1

Undefined

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-3

-7

1

0

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cot x + c

tan x + c

-cot x + c

-tan x + c

The angle between lines xy =0 is

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45°

60°

90°

180°

The period of sin x/2 = Cos x/3 is

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2p

12p

13p

7p

Sine is a periodic function and its period is ______

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π

s

2π

4π

If x - 2 is a factor of ax2- 12x + a = 2a, then a = ______

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-5

5

0

1

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A = x, B = 1

A = 0, B = 2

A = -1, B = 1

A = x-1, B = x + 1

Period of sec x is ______

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If x,y are two -ve distinct numbers then

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A>G>H

A<G<H

A=G=H

None of these

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