Question # 1

The multiplicative inverse of -1 in the set {1-, 1} is

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1

-1

+-1

0

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- cot 4x + c

cot 4x + c

tan 4x + c

- tan 4x + c

Any recurring decimal represents a

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Irrational no

Integer

Rational no

None of these

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

The vertex of the parabola (xsin a -ycos a)2 =4a(xcos a +ysin a) lies at

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(acos a,asin a)

(a,0)

(cos a,sin a)

(0,0)

The sample space for tossing a coin once is

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{T, T}

{H, H}

{H, T}

None of these

The middle term of [1/x-x]¹⁰is

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-152

-252

371

-421

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3

1

4

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-3

-7

1

0

The exponent of x in 10th term in the expansion of (a+x)n

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10

12

11

9

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2

1

5

0

x²+ x - 6 = 0 is

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An equation

An identity

A polynomial

None of these

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1

2

-1

0

A number A is called the arithmetic mean between a and b if a, A, b is ______

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Arithmetic sequence

Geometric sequence

Harmonic sequence

Arithmetic sequence

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16

256

64

1024

The function f{(x, y) | y = ax²+ bx + c} is

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One-one function

Constant function

Onto function

Quadratic function

Range of tan x is ______

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[-1, -]

R

Negative real numbers

R - {x | - 1 < x < 1}

3x + 4 > 0 is

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equation

inequality

identity

none of these

H₁, H₂, H₃, .... H_nare called n harmonic means between a and b if a, H₁, H₂, H₃, ... H_nb are in

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H.P.

G.P.

A.P.

None of these

The horizontal distance between the two towers is 60 m. the angular elevation of the top of the taller tower as seen from the top of the shorter one is 30°. If the height of the taller tower is 150 m, the height of the shorter one is

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116 m

200 m

216 m

None of these

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If a^x= b^y= c^zand a, b, c are in G.P. then x, y, z are in

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A.P.

G.P.

H.P.

None of these

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An experiment yields 3 mutually exclusive and exhaustive events A, B, C, if P(A) =2 and P(B) = 3. then P(C) =

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1 / 11

2 / 11

3 / 11

6 / 11

an -an-1,∀n∈N∧n>1 in an A.P is called

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Common difference

nth term

Common ratio

None of these

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0

1

2

nCn-r is equal to

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n!

n-1Cr

nCr

None of these

If f(α) = b2 and g (c) =d where c=b2 then (gof)(a) is

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α

c

b

d

An open sentence formed by using the sign of equality "=" is called

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Equation

In equation

True sentence

False sentence

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x = sin^-13, then the value of sin x is

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√(3/2)

3

Not possible

-1

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