જો $\tan x = \frac{b}{a}$ હોય,તો $\sqrt{\frac{a + b}{a - b}} + \sqrt{\frac{a - b}{a + b}} = $

  • A
    $\frac{2\sin x}{\sqrt{\sin 2x}}$
  • B
    $\frac{2\cos x}{\sqrt{\cos 2x}}$
  • C
    $\frac{2\cos x}{\sqrt{\sin 2x}}$
  • D
    $\frac{2\sin x}{\sqrt{\cos 2x}}$

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જો $\cot \theta + \tan \theta = m$ અને $\sec \theta - \cos \theta = n$ હોય,તો નીચેનામાંથી કયું સાચું છે?

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જો $\sin 2\theta + \sin 2\phi = 1/2$ અને $\cos 2\theta + \cos 2\phi = 3/2$ હોય,તો $\cos^2(\theta - \phi) = $

જો $\cos A = m \cos B$ હોય,તો

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