કેટલાક $a, b, c \in R$ માટે,જો $\sin 5 \theta = a \cos^4 \theta \sin \theta + b \cos^2 \theta \sin^3 \theta + c \sin^5 \theta$ હોય,તો $abc =$

  • A
    -$10$
  • B
    $10$
  • C
    $0$
  • D
    -$50$

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Similar Questions

જો $\sin^4 \theta \cos^2 \theta = \sum_{n=0}^{\infty} a_{2n} \cos 2n \theta$ હોય,તો $n$ ની ન્યૂનતમ કિંમત શોધો જેના માટે $a_{2n} = 0$ થાય.

સાબિત કરો કે $\tan 4x = \frac{4 \tan x (1 - \tan^2 x)}{1 - 6 \tan^2 x + \tan^4 x}$.

જો $\cos^3 \theta + \cos^3 \left(\frac{2 \pi}{3} + \theta\right) + \cos^3 \left(\frac{4 \pi}{3} + \theta\right) = \alpha \cos 3 \theta$ હોય,તો $\alpha$ ની કિંમત શોધો.

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

જો $\sin(x+3\alpha) + 3\sin(x-\alpha) = 0$ હોય,તો

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