Question # 1

Power set of difference set N-W is

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Empty set

Infinite set

Singleton set

{0,∅}

Which of the following is the subset of all sets?

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R

2R

r

2r

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none of these

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I and III quadrants

II and III quadrants

I and II quadrants

II and IV quadrants

The sum of n terms of a series is denoted by

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d

n

S_n

a_n

Domain of cosecθis

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If distance between (3,b) and (0,0) is 3 then b = _______

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3

9

0

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In (x + iy) x is the known as

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Imaginary part of complex number

Real part of complex number

Complex number

None of above

Which of the following is not a quadrantal angle

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90°

100°

180°

270°

If x³+ 4x³- 2x +5 is divided by x - 1, then the reminder is

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8

6

4

None of these

Geometrically the modulus of a complex number represents its distance from the

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Point (1,0)

Point (0,1)

Point (1,1)

Point (0,0)

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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i²=

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1

2

-1

0

Number of ways of writing the letters of WORD taken all at a time is

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24

4

12

6

The conjugate of √5 i is

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√5

-√5 i

i

5i

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2x

3x²

1

0

Root of the equation 3^x-1+ 3^1-x= is

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2

1

0

-1

If sin x + sin²x = 1, then the value of Cos¹²x + 3cos¹⁰x + 3cos⁸x + cos⁶x + 2 cos⁴x + cos²x-2 is equal to

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0

1

2

sin²x

Derivative of sin x w.r.t. sin x is

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0

1

sin x

cos x

The points (5, 2, 4)(6, -1, 2) and (8, -7, k) are collinear if k is equal to

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-2

2

3

-1

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-x

Infinite set

{-4, 4}

None of these

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A,. B, C are coincident

A, B, C are collinear

Both A and B

None of these

f(x) = 3x/x² + 1 is:

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an even function

an odd function

an even and implicit function

neither even nor a odd

If A is a skew-symmetric matrix of order n and P, any square matrix of order n, prove that P' AP is

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Skew-symmetric

Symmetric

Null

Diagonal

w⁴= ______

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0

1

w

w²

The point ________ is in the solution of the inequality 2x - 3y < 4

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(0, -2)

(1, -3)

(2, 2)

(3, 0)

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