alleryThe derivative of $\tan x$ with respect to $x$ is:
A$\sec x \tan x$
B$\cot x$
C$\sec^2 x$
D$-\csc^2 x$
Answer & Solution
Correct answer: C. $\sec^2 x$
d/dx(tan x) = sec²x.
Keep practising Continuity and Differentiability
Browse all Continuity and Differentiability questions for GRE, or explore more Mathematics topics.
Related questions
The derivative of $ qrt{x}$ with respect to $x$ is:Rolle's theorem requires that $f$ be continuous on $[a,b]$, differentiable on $(a,b)$ and:The derivative of $x e^x$ with respect to $x$ is:A function $f$ is continuous at $c$ only if the left-hand limit, right-hand limit and $f(cThe derivative of $\log_e(x^2)$ with respect to $x$ is:The derivative of $e^{2x}$ with respect to $x$ is:Every differentiable function is necessarily:The function $f(x) = |x|$ is continuous everywhere but is NOT differentiable at: