Question # 1

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The expansion of (1 - 3x)^-1is valid if

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| x | < 1

| x | < 3

| x | < 1/3

None of these

sin^-1[-1/2] = ______

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The set {1, 2, 3, 4, ....} is called

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Set of Natural numbers

Set of whole numbers

Set of rational number

Set of irrational numbers

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A rational number

A irrational number

An even integer

A factor of 36

The nth term of a G.P. is

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a₁rⁿ

a₁rⁿ⁺¹

a₁r^n-1

a₁r^-n

The approximate increase in the area of a circular disc if its diameter increased form 44cm to 44.4cm is

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0.4cm

8.8πcm

17.6 πcm

35.2πcm

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Zero matrix

Diagonal matrix

Column matrix

Scalar matrix

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2

-1

8

not defined

{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

None of these

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Principle of equality of fractions

Rule for product of fractions

Golden rule for fractions

Rule for quotient of fractions

Onto function is also called

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Binjective function

Injective function

Surjechive function

None of these

In R the number of identity elements w.r.t.'.' is

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One

Two

Three

Four

The third term of the sequence a_n= (-1)^n-1(n-7) is ______

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8

4

-4

8

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2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called

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Associative property

Identity property

Commutative property

Closure property w.r.t multiplication

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3/4

r

v

None of these

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cos 2x

2 cos 2x

2 sin2x

-2 cos2x

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A finite set

An infinite set

An empty set

None of these

(a-1)-1 =

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a-1

a

-a

None of above

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6

20

0

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(a + b)c = ac + bc

a + b = b + a

(a + b) + c = a + (b + c)

a(b +c) = ab + ac

If a = {2m/2m < 9 ,m€ p} , the (n A) =

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{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

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tan^-1(1/4) + tan^-1(2/9) is equal to

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1/2 cos^-1(3/5)

1/2 sin^-1(3/5)

1/2 tan^-1(3/5)

tan^-11/2

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-2x cos x²

-2x²sin x²

-x²sin x

-2x²sin x²

The condition for polynomial equation ax2 + bx + c = 0 to be quadratic is

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a > 0

a < 0

a≠ 0

a≠ 0,b ≠ 0

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I quadrant

II quadrant

III quadrant

IV quadrant

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A

B

U

None of these

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