Question # 1

ᵨ is a

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variable

Positive constant

Positive variable

Directrix

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Z is the set of integers (Z.*) is a group with a * b = a +b +1, a,b ∈ G.then inverse of a is

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-a

a +1

-1-a

None of these

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0

undefined

An infinite arithmetic series is always

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Convergent

Oscillatory

Divergent

None of these

If z = (x,y) , then z ̅ =

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(-x,y)

(x,-y)

(-x, -y)

None of these

Two circles are said to be concentric if they have

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same radius

same chord

same centre

same diameter

√(-1b) =?

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b i

-i b

b2

i√b

A function in which the second elements of the order pairs are distinct is called

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Onto function

One-one function

Identity function

Inverse function

Derivative of sin x w.r.t. sin x is

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0

1

sin x

cos x

(0.90)^1/2is equal to

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0.99

0.90

0.80

0.88

If a₁and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

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0

a₁r^n-1

a₁rⁿ⁺¹

a₁rⁿ

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2²- n - 1

1 - 2^-n

n + 2^-n-1

2ⁿ- 1

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Principle of equality of Fractions

Rule for product of fraction

Golden rule of fraction

Rule of quotient of Fraction

In R, the additive inverse of a is

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0

1

-a

1/a

For all points (x,y) in first quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

G = {e, a, b, c} is an Abelian group with e as identity element. The order of the other elements are

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2, 2, 2

3, 3, 3

2, 2, 4

2, 3, 4

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If the equation x2+2x-3=0 and x2+3x-k=0 have a common root then the non - zero value of k is

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1

3

2

4

A sequence is a functions whose domain is a subset of the set of

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Natural numbers

Real numbers

Whole numbers

Rational numbers

The formula an = a +(n-1)d for an A.P is called

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nth term of an A.P

Sum of first n terms

A,M between a and b

None of the above

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If you are looking a bird in the tree from the ground then the angle formed is called angle of______;

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Elevation

Depression

Right angle

None of these

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The exact value of cos-1 (0) is

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π/2

-π/2

3π

π-π/6

The period of the trigonometric function y = sin x cos x is

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2π

π

4π

π / 2

The square matrix A is skew-symmetric when At =

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-B

-C

-A

-D

The polynomial x - a is a factor of the polynomial f(x) if and only if

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f(a) is positive

f(a) is negative

f(a) = 0

None of these

If a,b,c are unit vectors then |a + b|2 +|a - b|2

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4

8ab

9cos

4(a,b)

The total cost of 2 apples and 3 oranges is $1.70, which of the following is true

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The cost of one apple

The cost of one orange

Both have equal cost per item

Cost of each single item can not be determined

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