DifferentiationHard

Question

If y = cos^-1 , then is equal to -

Options

A.

B.

C.

D.None of these

Solution

y = cos^-1 = ?
x = tanθ
y = cos^-1

y = cos^-1

y = cos^-1

y = θ/2
y = 1/2 tan^-1x

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