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AP EAMCET · Maths · Indefinite Integration

\(\int \frac{\sin ^3(x)+\cos ^3(x)}{\sin ^2(x) \cdot \cos ^2(x)} d x=\)

  1. A \(\sec (x)-\operatorname{cosec}(x)+c\)
  2. B \(\tan (x)+\cot (x)+c\)
  3. C \(\operatorname{cosec}(x)-\cot (x)+c\)
  4. D \(\tan (x)-\cot (x)+c\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\sec (x)-\operatorname{cosec}(x)+c\)

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \int \frac{\sin ^3 x+\cos ^3 x}{\sin ^2 x \cos ^2 x} d x \\ & =\int(\sec x \tan x+\cot x \operatorname{cosec} x) d x \\ & =\sec x-\operatorname{cosec} x+C \\ \end{aligned}\) Hence, option (a) is correct.