Question # 1

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0

1

-1

If sinαand cosαare the roots of the equation px²+ qx + r =0, then

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p²- q²+ 2pr = 0

(p + r)²= q²- r²

p²+ q²- 2pr = 0

(p - r)²= q²+ r²

A Series which does not coverage to a Unique sum is called

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Harmonic Series

Oscillatroy Series

Arithmetic Series

None of these

The period of sin x/2 = Cos x/3 is

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2p

12p

13p

7p

The distance of the plane 2x - 3y + 6z + 14 = 0 from the origin is

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14

2

-2

11

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(-1, 2)

(-1, 1)

(1, 2)

{-1}

The roots of the equations will be equal if b²- 4ac is

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Positive

Negative

1

Zero

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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

The sum of first 60 natural numbers is

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1830

3660

1640

1770

For all points (x,y) in third quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

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The additive inverse of 1 is

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1

-1

0

Does not exist

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Reflexive property

Symmetric property

Cancellations property w.r.t. addition

Transitive property

sin(π/2+θ) = _______;

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sinθ

cosθ

-sinθ

-cosθ

If a₁= a₂= 2, a_n= a_n-1- 1 (n > 2), then a₅is

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1

0

-1

-2

A box containing 10 mangoes out of which 4 are rotter. Two mangoes are taken together from the box. If one of them is found to be good, the probability that the other is also good is

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1 / 3

8 / 15

5 / 13

5 / 9

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3

1

2

4

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What is range of the function g (x) =|x-3|?

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[0 ,∞ )

(0 ,∞)

(-∞ ,3]

[0,∞)

pth term of an H.P. is qr and qth term is pr then the rth term of the H.P. is

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pqr

1

pq

pqr²

cos(π/2-θ) = ________;

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cosθ

sinθ

-cosθ

-sinθ

For an A.P common difference d

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Can be zero

May or may not zero

Cannot be zero

None of these

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

Form a group of 5 men and 3 women, a committee of 4 persons is to be selected randomly. The probability that there is a majority of men is

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1/4

1/3

1/2

1/6

The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

Given X.Y are any two sets such that number of elements in X = 18, number of elements in set Y = 24,and number of elements in set X∪ Y =40,then number of elements in set x∩ Y =

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3

1

2

4

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I quadrant

II quadrant

III quadrant

IV quadrant

The set of whole numbers is subset of

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The set on integers

The set of natural numbers

{1, 3, 5, 7, ....}

The set of prime numbers

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If C={p/p < 18, p is a prime number}, then C =

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{2,3,4,.........17}

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

{1,3,5,7,9,11,13,15,17}

{3,6,9,12,15}

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