Question # 1

The principal value of sin-1√(3/2) is

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-π/3

π/3

2π/3

π/2

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An infinite sequence has no

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nth term

Last term

Sum

None of these

The line joining the center of a circle to the midpoint of the chord is

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Perpendicular to the tnagent

Perpendicular to the normal

Perpendicular to the chord

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x-axis

y-axis

z-axis

None of these

The conjugate of √5 i is

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√5

-√5 i

i

5i

The 7th term of the A.P 7,11,15,is

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24

31

26

23

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-10

10/7

-10/7

-7/10

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1 / 2

1 / 3

1 / 4

None of these

If a₁, r and a_nare the first term, common ratio and the nth term respectively of a G. P. then a_n=

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a₁rⁿ

a₁r^n-1

a₁rⁿ⁺¹

a₁r

Every identity matrix is

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Row-vector

Scalar

Column-vector

All

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1

2

-1

0

If the matrices A and B are conformable for multiplication then (AB)^t= ______

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AB

A^tB^t

B^tA^t

A^tB

Ifα,β are non-real roots of ax2 + bx +c =0 (a,b,c∈ Q),then

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α = β

αβ = 1

α = β

α = 1

What is the 26th term of the sequence, if its general term is a_{n = (-1)}ⁿ⁺¹

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2

26

27

1

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The mid point of the line segment joining the points (a,b) and (b,a) is

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The extraction of cube root of a given number is a

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Unary Operation

Binary Operation

Relation

None of these

(√3+√5)+√7 = √3 +(√5 +√7) property used in above is

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Commutative property of addition

Closure property of addition

Additive inverse

Associative property w.r.t to adition

√x = ______ if is a prime number

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Rational no

Natural no

Irrational no

Complex no

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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For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

Which is a proper rational fraction

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(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

Sin h^-1x = _________

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4x + 1

4x

2x³

none of these

Composition of functions is

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Non-commutative (fg ≠ gf)

non-associative [8(fh) ≠(8f)h]

Commutative (fg = gf)

f of-1≠ 1

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