JEE Math Practice Question
If $10 \sin ^4 \theta+15 \cos ^4 \theta=6$, then the value of $\frac{27 \operatorname{cosec}^6 \theta+8 \sec ^6 \theta}{16 \sec ^8 \theta}$ is
- A.$\frac{2}{5}$
- B.$\frac{3}{5}$
- C.$\frac{1}{5}$
- D.$\frac{3}{4}$
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