TS EAMCET · Maths · Trigonometric Ratios & Identities
If \(\frac{\sin ^4 x}{2}+\frac{\cos ^4 x}{3}=\frac{1}{5}\), then \(27 \sec ^6 \alpha+8 \operatorname{cosec}^6 \alpha=\)
- A 250
- B 125
- C 175
- D 350
Answer & Solution
Correct Answer
(A) 250
Step-by-step Solution
Detailed explanation
\(\frac{\sin ^4 x}{2}+\frac{\cos ^4 x}{3}=\frac{1}{5}\) \(\frac{3 \sin ^4 x+2 \cos ^4 x}{6}=\frac{1}{5}\)…
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