Question # 1

If 2 tan¹(cos x) = tan^-1(cosec²x), then x is equal to

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π/ 3

π/ 2

π/ 6

π

Ifπ≤x≤2π, then cos-1 (cos x)=

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cos x

-x

1/x

-x

tan(cot^-1x) is equal to

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cot(tan^-1x)

tan x

secon x

None of these

The domain of the principle cos function is

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x = sin^-13, then the value of sin x is

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√(3/2)

3

Not possible

-1

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0

1

-1

None of these

Sin-1(-x)=

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x

-x

-sin-1 x

cos-1 x

In the interval 0≤ x ≤ π, the sine is

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Not a function

Not defined

Infinity

Not one-to-one function

Sin -1 x=

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sin(π/2-x)

Sin-1 (π/2-x)

π/2-cos-1x

π/2 + cos-1x

The exact value of cos-1 (0) is

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π/2

-π/2

3π

π-π/6

The domain of the principle sine function is

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ECAT Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers

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