AP EAMCET · Maths · Trigonometric Ratios & Identities
The value of \(\cos \left(\frac{7 \pi}{12}\right)\) is
- A \(\frac{\sqrt{2}+\sqrt{3}}{4}\)
- B \(\frac{\sqrt{2}-\sqrt{3}}{4}\)
- C \(\frac{\sqrt{2}-\sqrt{6}}{4}\)
- D \(\frac{\sqrt{2}+\sqrt{6}}{4}\)
Answer & Solution
Correct Answer
(C) \(\frac{\sqrt{2}-\sqrt{6}}{4}\)
Step-by-step Solution
Detailed explanation
\(\cos \left(\frac{7 \pi}{12}\right)=\cos \left(\frac{\pi}{2}+\frac{\pi}{12}\right)=\sin \frac{\pi}{12}\)…
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