Question # 1

sin[cot^-1{cos(tan^-1x)}]=

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ab > 0 and a > 0 then

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a > b

a < b

a = b

None

If A⊆ B, and B is a finite set, then

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n (a) < n(B)

n(B)<(A)

n(A)≤ n (B)

n(A)≥ n(B)

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

If f(x) = x³- 2x²+ 4x -1, then f(-2) = ?

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0

-25

5

45

If f(x) = x²- x then f(2) is

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4

6

2

0

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The roots of (x - a)(x - b) = ab x2 are always

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Real

Depends upon a

Depends upon b

Depends upon a and b

The velocity of a particle moving along a straight line is given by v = 3t + t². The acceleration of the particle after 4 seconds from the start is

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4

11

26

None

ᵨ is a

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variable

Positive constant

Positive variable

Directrix

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