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Single Variable Calculus

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Moderate

Integration by Parts: x times a Secant Function

SVCALC-35SCQJ

Evaluate the integral

$$\int x \sec^2 xdx$$

A

$x^2\sec^2 x - x\sec^2x+C$

B

$x\sec^3 x + C$

C

$x\tan x - \ln |\cos x| + C$

D

$x\tan x + \ln |\cos x| + C$

E

$x\tan x + \ln (\cos x) + C$