COMEDK · Maths · 8. Trigonometric Ratios & Identities
If \(\cot \alpha \cot \beta=2\), then \(\frac{\cos (\alpha+\beta)}{\cos (\alpha-\beta)}\) is equal to
- A 3
- B \(\frac{2}{3}\)
- C \(\frac{1}{3}\)
- D \(\tan \alpha \tan \beta\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{3}\)
Step-by-step Solution
Detailed explanation
We have, \(\cot \alpha \cot \beta=2\)…
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