If cosα = 2 -1 2- , (0 < α < π,0 < β < π), then tan 2 2 is equal to
Mathematics · JEE Advanced · NTA Exams — Trigonometry
If cosα =\(\frac{2 \cos \beta-1}{2-\cos \beta},\) (0 < α < π,0 < β < π), then tan\(\frac{\alpha}{2} \cot \frac{\beta}{2}\) is equal to
- 1
- \(\sqrt{2}\)
- \(\sqrt{3}\)
- none of these
Answer
(C) 3
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