CBSE

MATHEMATICS · Single correct · CBSE · Mathematics · Limits and Derivatives · Limits and Derivatives

Problem

Evaluate

\displaystyle\lim_{h\to0}\frac{\tan(x+h)-\tan x}{h}

. (a)

\tan^{2}x

(b)

\sec^{2}x

(c)

\csc^{2}x

(d)

\sec x\tan x