Question:
Mark $(\sqrt{)}$ against the correct answer in each of the following:
$\int \frac{1}{x \cos ^{2}(1+\log x)} d x=?$
A. $\tan (1+\log x)+C$
B. $\cot (1+\log x)+C$
C. $\sec (1+\log x)+C$
D. none of these
Solution:
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