The value of cos 12° . cos 24° . cos 36° . cos 48° . cos 72° . cos 84° is

Mathematics · JEE Main · NTA Exams — Trigonometry

1. 
2. \(\frac{1}{32}\)
3. \(\frac{1}{16}\)
4. \(\frac{1}{128}\)

Answer

(A)

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