\(\int \frac{\sin ^{8} x-\cos ^{8} x}{1-2 \sin ^{2} x \cos ^{2} x}\) dx is ……………………
A. \(\frac{1}{2}\) sin2x + c
B. –\(\frac{1}{2}\) sin2x + c
C. \(\frac{1}{2}\) cos 2x + c
D. – \(\frac{1}{2}\) cos 2x + c
Answer:B
\(\int \frac{\sin ^{8} x-\cos ^{8} x}{1-2 \sin ^{2} x \cos ^{2} x}\) dx is ……………………
A. \(\frac{1}{2}\) sin2x + c B. –\(\frac{1}{2}\) sin2x + c C. \(\frac{1}{2}\) cos 2x + c D. – \(\frac{1}{2}\) cos 2x + c