$R$ થી $R$ પર વ્યાખ્યાયિત નીચેના વિધેયોમાંથી,અચળ વિધેય કયું છે?

  • A
    $\frac{3}{5+4 \sin 3x}$
  • B
    $\frac{1}{2-\cos 3x}$
  • C
    $\cos^2 x + \cos^2(x + \frac{\pi}{3}) - \cos x \cdot \cos(x + \frac{\pi}{3})$
  • D
    $\frac{15}{3 \sin x + 4 \cos x + 10}$

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Similar Questions

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 $x + y = 3 - \cos 4\theta$ અને $x - y = 4 \sin 2\theta$ હોય,તો:

$\cos \frac{\pi}{10} \cos \frac{2\pi}{10} \cos \frac{4\pi}{10} \cos \frac{8\pi}{10} \cos \frac{16\pi}{10}$ નું મૂલ્ય શોધો.

$0 < \theta < \frac{\pi}{2}$ માટે,$\sum_{m=1}^6 \operatorname{cosec}\left(\theta+\frac{(m-1) \pi}{4}\right) \operatorname{cosec}\left(\theta+\frac{m \pi}{4}\right) = 4 \sqrt{2}$ ના ઉકેલ(ઓ) છે:

$1 + \cos 56^\circ + \cos 58^\circ - \cos 66^\circ = $

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