Question # 1

A∪(A∪B)= --------------------

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B

A

A∪B

None of these

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

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A monoid (G, *) is said to be group if

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have identity element

is commutative

have inverse of each element

None of these

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

The multiplicative inverse of 1 is

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1

-1

0

Does not exist

In an A.P,a +(n-a)d is

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1st term

General term

Last term

None of these

If #n = (n-5)²+ 5, then find #3 x #4.

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54

12

4

9

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If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

150°= ______

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Which of the following is a vector.

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distance

temperature

energy

acceleration

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8

1/56

56

None of these

A,G,H are in

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A.P

G.P

H.P

None of these

For two vector a and b, a+b = _______

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a b

b+a

b-a

None

Which of the following is a vector

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length

momentum

volume

speed

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1

2

3

None of these

Fifteen girls compete in a race. The first three places can be taken by them in

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3! ways

12! ways

15 x 14 x 13 ways

42 ways

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

pth term of an H.P. is qr and qth term is pr then the rth term of the H.P. is

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pqr

1

pq

pqr²

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If A = {x/x is a positive integer and 4≤x<23}, then A=

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{1,2,3,4,5,6,7}

{4,5,6...........22}

{1,2,3,.........23}

{1,2,3,4,5}

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

In set builder notation the set {0, 1, 2, ............, 100} can be written as

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The condition for ax2 + bx c to be expressed as the product of linear polynomials is

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b4 - 4ac =0

b4- 4ac ≥0

b4- 4ac <0

b4= 4ac

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The equation of a line parallel to the tangent to the circle x²+ y²= 16 at the point (2, 3) and passing thro' the origin is

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2x + 3y = 0

2x - 3y = 0

3x + 2y = 0

3x - 2y = 0

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2, 3

3, 3

2, 6

2, 4

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The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

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