જો $3 \sin^{2} x - 8 \sin x + 4 = 0$ અને $x \in \left(\frac{\pi}{2}, \pi\right)$ હોય,તો $\tan x = $

  • A
    $-\frac{\sqrt{5}}{2}$
  • B
    $\frac{2}{\sqrt{5}}$
  • C
    $-\frac{2}{\sqrt{5}}$
  • D
    $\frac{\sqrt{5}}{2}$

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જો $\sin \theta + \sin^2 \theta = 1$ અને $\cos^{12} \theta + a \cos^{10} \theta + b \cos^8 \theta + c \cos^6 \theta + d = 0$ હોય,તો:

જો $\cos \left(\frac{\alpha-\beta}{2}\right)=2 \cos \left(\frac{\alpha+\beta}{2}\right)$ હોય,તો $\tan \frac{\alpha}{2} \tan \frac{\beta}{2}=$

જો $\sin \theta + \operatorname{cosec} \theta = 2$ હોય,તો $\sin^{10} \theta + \operatorname{cosec}^{10} \theta$ નું મૂલ્ય કેટલું થાય?

જો $\alpha$ એ $25\cos^2\theta + 5\cos\theta - 12 = 0$ નું બીજ હોય અને $\pi/2 < \alpha < \pi$ હોય,તો $\sin 2\alpha$ ની કિંમત શોધો:

આપેલ છે કે $\sin \beta = \frac{4}{5}$ અને $0 < \beta < \pi$. તો $\frac{\sqrt{3} \sin(\alpha + \beta) - \frac{2}{\cos(\pi/6)} \cos(\alpha + \beta)}{\sin \alpha}$ નું મૂલ્ય શું છે?

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