Question # 1

In the function f: A⟶B, the elements of a are called

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Images

Pre-images

ranges

Parameters

The points (5, 0, 2), (2, -6, 0), (4, -9, 6) and (7, -3, 8) are vertices of a

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Square

Rhombus

Rectangle

Parallelogram

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2

-2

none of these

If #n = (n-5)²+ 5, then find #3 x #4.

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54

12

4

9

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

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Which of the following is the subset of all sets

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Φ

{1,2,3}

{Φ}

{0}

n(n - 1) (n - 2) .... (n - r + 1) = ______

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The number of triplets (x, y, z) satisfying sin^-1x +cos^-1y + sin^-1z = 2π is

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0

2

1

Infinite

(fog)′(x) =f′(g(x))g′(x) is derivative by

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Chain rule

Reciprocal rule

Power rule

Product rule

Tangent is ...............function

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Inverse

one-one

in-to

Periodic

f(x) = C is

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identity function

constant function

linear function

quadratic function

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If 2 and 2 are x and y components of vector then its angle with x-axis is

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30°

45°

60°

90°

For each even natural number n (n²-1) is divisible by

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6

3

4

8

If 0 = R, thenthe additive inverse of a is

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1/9

^1/-9

a

-a

s > t then

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(s - t)²> (t - s)²

(s - t)²< (t - s)²

(s - t)²= (t - s)²

None

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15

15 i

-15 i

-15

(ABC)' =

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CBA'

CBA

C'B'A

C'B'A'

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-1

0

1

None of these

6! = ______

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360

720

6.5.4

None of these

n different objects can be arranged taken all at a time in ______

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(n + 1)! ways

(n - 1)! ways

n! ways

n ways

The number of divisors of 1029, 1547 and 122 are in

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A.P.

G.P.

H.P.

None of these

The area of circle of unit radius =

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0

1

4

π

Write the first four terms of the arithmetic sequence 5, 2, -1, ... is

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3

-4

7

1

If a = {2m/2m < 9 ,m€ p} , the (n A) =

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{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

Each complex cube root of unity is square of

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itself

1

-1

the other

The exact value of cos-1 (0) is

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π/2

-π/2

3π

π-π/6

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