Evaluate the Integral $$\int \frac { 6 \sin 2 x } { 1 + \cos ^ { 4 } x } d x$$

question 91

Multiple Choice

Evaluate the integral.
$$\int \frac { 6 \sin 2 x } { 1 + \cos ^ { 4 } x } d x$$

• A) \(6 \arctan \left( \sec ^ { 2 } x \right) + C\)
• B) \(- 6 \cos ^ { 2 } 2 x + C\)
• C) \(- 6 \arcsin ( \tan x ) + C\)
• D) \(1 - 6 \cos ^ { 2 } x + C\)
• E) None of these

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