જો $\sin x + \sin^2 x = 1$ હોય,તો $\cos^8 x + 2\cos^6 x + \cos^4 x = $

  • A
    $0$
  • B
    $-1$
  • C
    $2$
  • D
    $1$

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Similar Questions

પદાવલિ $2 \cos \frac{\pi}{13} \cos \frac{9\pi}{13} + \cos \frac{3\pi}{13} + \cos \frac{5\pi}{13}$ ની કિંમત શું થાય?

જો $2 \cos \theta + \sin \theta = 1$ $\left( \theta \neq \frac{\pi}{2} \right)$ હોય,તો $7 \cos \theta + 6 \sin \theta$ ની કિંમત શોધો.

જો $\theta \in \left[-\frac{\pi}{2}, \frac{\pi}{2}\right]$ માટે $2 \cos \theta + \sin \theta = 1$ અને $7 \cos \theta + 6 \sin \theta = k$ હોય,તો $k$ ની શક્ય કિંમતો કઈ છે?

જો $x = a \cos^3 \theta$ અને $y = b \sin^3 \theta$ હોય,તો:

કિંમત શોધો: $\sin \frac{\pi}{12} \sin \frac{2 \pi}{12} \sin \frac{3 \pi}{12} \sin \frac{4 \pi}{12} \sin \frac{5 \pi}{12} \sin \frac{6 \pi}{12}$

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