Question # 1

If for the matrix A, A⁵= I, then A^-1=

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A²

A³

A

None of above

Domain of sin x is ______

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The synthetic division method is only used to divide a polynomial by

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quadratic equation

binomial

linear equation

monomial

The points A(+1,-1),B(3,0),C(3,7),D(1,8) are vertices of

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Square

Parallelogram

Rectangle

Trapezium

2π+θwill have terminal side in Quad

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I

II

III

IV

cos2a=______;

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cos2 a-sin2 a

2cos2 a-1

1-2 sin2 a

All of these

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-3

-7

1

0

The sum of first n even number is

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n2

n(n+1)

n+1

n+2

If (2, 3) is the mid point of (a, 3) and (5, b) then

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a = 1 , b = -3

a = -1 , b = 3

a = 1 , b =3

a = -1 , b = -3

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If D = {a} , the P(D) =

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{a}

∅

{∅,{a}}

{∅,a}

If the 4th term in the expansion of (px + x^-1)^mis 2.5 for all x∈ R, then

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60° = ______

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(a +bi) -c (c +di) =

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(a +b) = (c +d)

(a +c) + i(b +d)

(a -c) + (c -d)i

(a -c) +(b -d) i

The set R is ........w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

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The range of y = sin x is ______

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[1, -1]

[-1, 1]

[0, -1]

[-∞+∞]

3/2 is

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An irrational number

Whole number

A positive integer

A rational number

Which of the following does not represent absolute value of a vector

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magnitude

length

norm

number

The slope of y-axis is

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0

undefined

1

If the roots of ax²+ bx + c = 0 (a > 0) be greater than unity, then

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a + b + c = 0

a + b + c > 0

a + b + c < 0

None of these

A = B if

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A is equivalent to B

∀x∈(a,b),f(x) is increasing if

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f′(x) >0

f′(x) <0

f′′(x) >0

f′′(x) =0

A function from X to X is denoted as

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f : X to Y

f : Y to Y

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9

-9

0

1

The lines that form the cone are called its:

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Generation

Circular cone

nappes

conics

The two parts into which 57 should be divided so that their product is 782 are

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43,14

34,23

33,24

44,13

(n + 2) (n + 1) n= ______

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ⁿC₂= exists when n is ______

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