Consider the function .

MATHEMATICS · Multi-part · A Level · Mathematics · Differentiation · Differentiation

Problem

Consider the function

y=\tan \left(\sqrt{1+\cos 4x}\right)

. (i) Obtain

\dfrac{dy}{dx}

in terms of

x

. (ii) Simplify the expression obtained in part (i) as far as possible. (iii) Evaluate

\dfrac{dy}{dx}

at

x=0

.

Related theory

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