Solve this following


Mark $(\sqrt{)}$ against the correct answer in the following:

If $y=\tan ^{-1}(\sec x+\tan x)$ then $\frac{d y}{d x}=?$

A. $\frac{1}{2}$

B. $\frac{-1}{2}$

C. 1

D. none of these


$\frac{d y}{d x}=\frac{1}{2}$

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