Use the Substitution Formula to Evaluate the Integral $\int_{\pi / 6}^{\pi / 2} \cot x \csc ^{4} x d x$

question 232

Multiple Choice

Use the substitution formula to evaluate the integral.
- $\int_{\pi / 6}^{\pi / 2} \cot x \csc ^{4} x d x$

• A) \(- \frac { 31 } { 5 }\)
• B) \(\frac { 15 } { 4 }\)
• C) \(- \frac { 15 } { 4 }\)
• D) \(\frac { 31 } { 5 }\)

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