Question # 1

Sec^-1x =

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Cos^-11/x

cosec^-11/x

Cos^-1(-x)

Tan^-1x

If p and q are two statements then their biconditional 'p if q' is denoted by

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A set having only one element is called

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An empty set

Universal set

A singleton set

A power set

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The area of the rhombus whose vertices are A(0,0),B(2,1),C(3,3),D(1,2) is

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36 square units

3 square units

6 square units

18 square units

If the exponent in the binomial expansion is 6, then the middle term is

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2nd term

3rd term

4th term

5th term

The coefficient of xn in the expansion of (1-x)-1 is

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(-1)n2n

1

(-1)n(n+1)

(n+1)

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

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3

9

0

One minute is denoted by

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1⁰

1'

1"

None of these

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0

1

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1

0

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The sum of indicated terms of a sequence is called

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Arithmetic series

Series

Harmonic series

None of these

3, 6, 12,.... is

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A.P

G.P.

H.P.

None of these

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3 sec²x

3 sec²3x

sec²3x

sec²x

The equation of the circle with centre (-h, -k) and radius r is

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(x +h)²+ (y+k)²= r²

(x +h)²+ (y-k)²= r²

(x -h)²+ (y+k)²= r²

(x -h)²+ (y-k)²= r²

If (2, 3) and (2, 5) are end points of a diameter of a circle, then the centre of the circle is

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(2, 4)

(4, 8)

(0, 2)

(0, -2)

What is the period of 5 cot x=?

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π

-π

π/2

2π

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The multiplicative inverse of 0 is

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1

-1

0

Does not exist

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An expression

Rational fraction

Equation

Identity

The total number of subsets that can be formed out of the set {a, b, c} is

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1

4

8

12

A square matrix A = [aij] is upper triangular when

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cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

An experiment yields 3 mutually exclusive and exhaustive events A, B, C, if P(A) =2 and P(B) = 3. then P(C) =

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1 / 11

2 / 11

3 / 11

6 / 11

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The probability to get an odd number in a dice thrown once is

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6

1

1/6

1/2

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Reflexive property

Symmetric property

Cancellations property w.r.t. addition

Transitive property

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15

15 i

-15 i

-15

The set (Z,+) forms a group

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Forms a group w.r.t addition

Non commutative group w.r.t multiplication

Forms a group w.r.t multiplication

Doesn't form a group

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