Question # 1

if one root of the equation ix2 - 2(i + 1) x +(2 - i)= 0 is 2 - i then the other root is

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-i

2 + i

i

2 - i

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Symmetric

Skew-symmetric

Hermitian

Skew hermitian

The period of 3 sin x is

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2π

9π

3π

5π

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8

9

10

11

The area between the x-axis the curve y =4x-x2 is :

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32/2

15

18

21

If you are looking someone on the ground from the top of a hill the angle formed is called angle of _______;

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Elevation

Depression

Right angle

None off these

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cosec x + c

-cosec x + c

-sec x + c

sec x + c

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The number of ways of arranging the letter AAAAA BBB CCC D EE F in a row when no two C's are together is

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The sum even binomial coefficient of (3+2x)5 is ______term

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16

30

8

32

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(g,f)

(-g,f)

(g,-f)

(-g,-f)

If one end of the diameter of the circle 2x²+ 2y²-8x - 4y = 2 = 0 is (2 ,3), the other end is:

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(2,1)

(-2,1)

(2,-1)

(1,-1)

The first three terms in the expansion of (1 - x)^-2are

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1 - 2x + 3x²

1 - 2x - 3x²

1 + 2x + 3x²

-2 - 2x +3x²

The number of subsets of a set having three elements is

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4

6

8

none of these

Number of selections of n different things out of n

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1

nPr

n!

nPr

The set of positive integers, 0 and negative integers is known as the set of

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Natural numbers

Rational numbers

All integers

Irrational numbers

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

sn (2sin-10.8)

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0.56

0.69

-0.16

0.96

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8

1/56

56

None of these

The proposition S(k+1) is true when ______ is true∀K∈N

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S(n)

S(k)

S(1)

S(k-1)

a >b ⇒a +c >b +c is known as

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Trichotomy property

Additive property of inequality

Transitive property

Multiplicative property

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f(x) = x²

f(x²) = x

f(x) = x

none of these

The sum of all even numbers less than 100 is

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2450

2352

2272

2468

2x + 3y > 4 is a linear inequality in

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one variable

two variables

three variables

none of these

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A finite set

An infinite set

An empty set

None of these

In quadratic equation f(x) = ax²,if a >0, then the graph of parabola

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Opens up

Opens down

close up

symmetric w.r.t.x.axis

System of linear equation is inconsistent if

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System has no solution

System has one solution

System has two solution

None of above

The domain of the principal tan function is

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For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

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The law of of sines

The law of tangents

The law of consines

None of these

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N

r

2r

π

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