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

$\mathbb{R}$ પર $4 \cos \left(x^2\right) \cos \left(\frac{\pi}{3}+x^2\right) \cos \left(\frac{\pi}{3}-x^2\right)$ ના અંતિમ મૂલ્યો કયા છે?

ધારો કે વિધેય $f(x) = 6 + 16 \cos x \cdot \cos \left(\frac{\pi}{3} - x\right) \cdot \cos \left(\frac{\pi}{3} + x\right) \sin 3x \cdot \cos 6x$,જ્યાં $x \in R$,નો વિસ્તાર $[\alpha, \beta]$ છે. તો બિંદુ $(\alpha, \beta)$ નું રેખા $3x + 4y + 12 = 0$ થી અંતર શોધો:

$\cot 18^{\circ} \cdot \cot 36^{\circ}+1=$

$\sqrt{3} \operatorname{cosec} 20^{\circ} - \sec 20^{\circ}$ ની કિંમત શોધો.

વિધેય $f(x) = \cos x \cos(x + 2) - \cos^2(x + 1)$ નો આલેખ શું છે?

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