Question # 1

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

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1

4

8

12

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Zero matrix

Diagonal matrix

Column matrix

Scalar matrix

2cos2 a/2 =______;

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1+sina

1-sina

1+cosa

1-cosa

sin5θ+sin3θ = _______;

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2sin 4θ cosθ

2cos 4θ sinθ

2cos 4θ cosθ

-2sin 4θ sinθ

If A is a non singular matrix then A^-1= ______

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sin (α +β)=

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sinαcosβ- cosαsinβ

sinαcosα- cosβsinβ

sinαcosα+ cosβsinβ

The value of sin-1 24/25 is equal to

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csc-1 25/24

sec-1 24/25

2 tan-1 4/5

2cos-1 24/25

The largest possible domain of the function:

y=√(x ) is:

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(0 ,∞)

12

(3 , 12)

( 3 ,∞)

Let a₁, a₂, a₃, a₄and a₅be such that a₁, a₂, and a₃are in A.P., a₂, a₃and a₄are in G.P and a₃, a₄and a₅are in H.P. Then, a₁, a₃and a₅are in

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G.P.

A.P.

H.P.

None of these

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28 / 81

28 / 243

81 / 28

243 / 82

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p < r

p > rr

p + r < 0

p - r < 0

f (x) = | x | is a/an

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Injective function

Bijective function

Surjective function

Implicit function

The number of proper subset of A ={a.b.c.d} is

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3

6

8

15

A dice is rolled. The probability that the dots on the top are greater than 4 is

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1/6

1/3

1/2

1

A square matrix A for which A^t= A is called a

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Column matrix

Symmetric matrix

Skew-symmetric matrix

Row matrix

The set of positive integers, 0 and negative integers is known as the set of

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Natural numbers

Rational numbers

All integers

Irrational numbers

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The tangents drawn from the point P to a circle are real and coincident if

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P is on the circle

P is inside the circle

P is outside the circle

none of these

The difference of two consecutive terms of an A.P is called the

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Common difference

Common ratio

Geometric series

Geometric mean

i^-(4n+2)= -------------------------------

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1

i

-1

-i

In (x +iy) y is called as

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Imaginary part

Complex number

Real part

None of above

What is the period of tan 4/3 x =?

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π/4

4π/3

7π/4

3π/4

The series obtained by adding the terms of a geometric sequence is called

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Infinite series

Arithmetic series

Geometric series

Harmonic series

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The law of sines

The law of consines

The law of tangents

None of these

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

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

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The number of non zero rows in echelon form of a matrix is called

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Order of matrix

Rank of matrix

Row operation

None of these

If the cutting plane is parallel to the axis of the cone and intersects both of its nappes, then the curve of intersection is

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an ellipse

a hyperbola

a circle

a parabola

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

Name the property used in 1000 x 1 = 1000

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additive inverse

multiplicative inverse

additive identity

multiplicative identity

For graphing a linear inequality, solid line is drawn if the inequality involves the symbols:

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> or <

= or≠

= or >

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