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