Mathematics · 2021
JEE Main · 26 August 2021, Shift 2 · Q80
The value of 2 sin ((π)/8) sin ((2 π)/8) sin ((3 π)/8) sin ((5 π)/8) sin ((6 π)/8) sin ((7 π)/8) is:
The value of
$$2 \sin \left(\frac{\pi}{8}\right) \sin \left(\frac{2 \pi}{8}\right) \sin \left(\frac{3 \pi}{8}\right) \sin \left(\frac{5 \pi}{8}\right) \sin \left(\frac{6 \pi}{8}\right) \sin \left(\frac{7 \pi}{8}\right) \text { is : }
$$
Official answer
(1)
$\displaystyle \frac{1}{8}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.