કિંમત શોધો: $\cos \frac{\pi}{5} \cos \frac{2\pi}{5} \cos \frac{4\pi}{5} \cos \frac{8\pi}{5}$

  • A
    $1/16$
  • B
    $0$
  • C
    $-1/8$
  • D
    $-1/16$

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Similar Questions

જો $3 \sin 2 \theta = 2 \sin 3 \theta$ અને $0 < \theta < \pi$ હોય,તો $\sin \theta$ ની કિંમત કેટલી થાય?

જો $A = 580^\circ$ હોય,તો નીચેનામાંથી કયું વિધાન સાચું છે?

$\cot x - \tan x = $

$\cos \frac{\pi}{2^2} \cdot \cos \frac{\pi}{2^3} \cdot \cos \frac{\pi}{2^4} \cdots \cos \frac{\pi}{2^{10}} = $

$cot\, x + cot\, (60^\circ + x) + cot\, (120^\circ + x)$ ની કિંમત શોધો:

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