\(\int \frac{d x}{\sin ^{2} x \cos ^{2} x}\) equals:
A. tan x + cot x + C
B. tan x – cot x + C
C. tan x cot x + C
D. tan x – cot 2x + C
Answer:B
\(\int \frac{d x}{\sin ^{2} x \cos ^{2} x}\) equals:
A. tan x + cot x + C B. tan x – cot x + C C. tan x cot x + C D. tan x – cot 2x + C