A Level

MATHEMATICS · Single correct · A Level · Mathematics · Integration · Integration

Problem

\int \frac{dx}{4\cos^3 2x-3\cos 2x}=

(a)

\frac{1}{3}\log[\sec 6x+\tan 6x]+C

(b)

\frac{1}{6}\log[\sec 6x+\tan 6x]+C

(c)

\log[\sec 6x+\tan 6x]+C

(d) None of these