જો $\cos(x) + \cos^2(x) = 1$ હોય,તો $\sin^2(x) + \sin^4(x)$ ની કિંમત કેટલી થાય?

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

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જો $u = \log \tan \left(\frac{\pi}{4} + \frac{\theta}{2}\right)$ હોય,તો $\cosh u =$

જો $\cos ^2 84^{\circ}+\sin ^2 126^{\circ}-\sin 84^{\circ} \cos 126^{\circ}=K$ અને $\cot A+\tan A=2 K$ હોય,તો $\tan A$ ની શક્ય કિંમતો શોધો.

જો $\cosh 2x = 199$ હોય,તો $\operatorname{coth} x =$

$\frac{\cos 15^{\circ} \cos^2 22\frac{1}{2}^{\circ} - \sin 75^{\circ} \sin^2 52\frac{1}{2}^{\circ}}{\cos^2 15^{\circ} - \cos^2 75^{\circ}} = $

જો $f(x) = \frac{\cot x}{1 + \cot x}$ અને $\alpha + \beta = \frac{5 \pi}{4}$ હોય,તો $f(\alpha) f(\beta)$ ની કિંમત શોધો.

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