Question # 1

cos(π/2-θ) = ________;

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cosθ

sinθ

-cosθ

-sinθ

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At

-A

A

A-1

w⁴= ______

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0

1

w

w²

3x + 4 < 0 is

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inequality

equation

identity

not inequality

f(x) = sin x is:

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an odd function

an even function

an implicit function

an exponential function

A bag contains 3 white, 4 black and 2 red balls. If 2 balls are drawn at random, then the probability that both the ball are white is

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1/18

1/12

1/36

None of these

If G is a G.M between a and b then a,G,b are in

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A.P

H.P

G.P

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

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0

1

The direction cosines of y-axis are

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1, 0, 0

0, 1, 0

0, 0, 1

1, 1, 1

The set of the first elements of the ordered pairs forming a relation is called its

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-x

does not exist

1/x

0

The fifth term of the sequence a_n = 3n - 2 is

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3

-3

13

-13

The set { {a,b} } is

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{X/X∈ A∧x ∈ U}

{X/X∉ A∧x ∈ U}

{X/X∈ A and x ∉ U}

A-U

In the figure PS is perpendicular to QR, if PQ = PR 26 and P8 = 24,then QR=

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10

20

40

26

An angle 0 is such that tan θ = 1 and cos θ is negative then

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Sin θ is positive

Cos θ = √2/4

cosθ = -1

sec θ is negative

Tan (π + Tan^-1 x) =?

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Tan x

X

-x

Cot^-1 x

F(x) = xx decreases in the interval

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(0,e)

(0.1)

(-∞.0)

None

There are 30 Red, 20 Green and some Blue bells in a bag if the probability of finding a Red ball is 1/3,how many are red balls in the bag

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120

20

40

90

If A = [a_ij] and b = [b_ij] are the matrices of the order 3x3 then A-B=

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Circle

Ellipse

Parabola

Hexagon

Two natural numbers whose sum is 25 and difference is 5, are

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25, 20

20, 10

20, 5

15, 10

Derivative of strictly increasing function is always

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Zero

Positive

Negative

Both A and B

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