Question # 1

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

tan(cot^-1x) is equal to

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cot(tan^-1x)

tan x

secon x

None of these

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Unit vector in the positive direction of x-axis is

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The distance between the points (0 , 0) and (1, 2) is

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5

0

3

if A = (x/x€ Q˄ 0 < x < 1}, the A is

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Infinite set

Finite set

Set of rational numbers

Set of real numbers

Which of the following is a vector

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length

momentum

volume

speed

14 is not a

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Prime number

Whole number

Even number

Real number

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Consider the equation px2 + qx + r = 0 where p,q,r are real The roots are equal in magnitude but opposite in sign when

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q = 0, r = 0,p ≠ 0

p = 0,qr≠ 0

r = 0,pq≠ 0

q = 0, pq≠ 0

If D = {a} , the P(D) =

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{a}

∅

{∅,{a}}

{∅,a}

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