Question # 1

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1, 2, 3

1, 5, 9

2, 5, 8

3, 6, 9

A matrix with a single column is called

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Column matrix

Row matrix

Identity matrix

Null matrix

Given two numbers a and b. Let A denote the single A.M. between these and S denote the sum of n A.M.'s between them. Then S/A depends upon

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n, a, b

n, a

n, b

n

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15/23

7/15

7/8

15/7

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a.a^-1= a^-1.a = 1 is a

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Commutative law of multiplication

Multiplication identity

Associative law of multiplication

Multiplication inverse

In triangle ABC, in which b=95, c=34, a =52^𝜊then the value of a=

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18 cm

18.027 cm

20.7 cm

19 cm

What is the conjugate of -7 -2i ?

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-7 + 2i

7 +2i

7 -2i

√53

The solution set of the equation 1 + Cos x = 0 is __________

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none of these

sin h x = ___________

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The domain of a finite sequence is a

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Set of natural numbers

R

Subset of N

Proper subset of N

f(x) = sin x + cos²x is

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trigonometric function

algebraic function

exponential function

logarithmic function

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sin2 π/6 + sin2 π/3 + tan2 π/4 =______;

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1

2

3

4

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

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Cofactor of an element aij denoted by Aij is

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(-2)i+j

Mij

(-1)i+j Mij

None of above

The angle between the vectors 3i + j - k and 2i - j + k is

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5

-5

none

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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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

For a square matrix A, if A = At, then A is called

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Matrix

Transpose

Symmetric

Non-symmetric

The sum of co-efficient in (1+x-3x²)⁴¹⁶³is

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0

1

-1

None

A = B iff

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All elements of A also the elements of B

A and B should be singleton

A and B have the same number of elements

If both have the same element

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A complex number

A rational number

A natural number

An irrational number

In how many ways can 5 persons be seated at a round table

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5!

4!

3!

120

The feasible region which can be enclosed within a circle is called

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Bounded region

Convex region

Unbounded region

None

The first three terms in the expansion of (1 - x)^-1are

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1 + x + x²

1 - x - x²

-1 -x +x²

1 - x + x²

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