જો $\sin 3A = \cos (A - 26^{\circ})$ હોય,જ્યાં $3A$ એ લઘુકોણ છે,તો $A$ નું મૂલ્ય ($^{\circ}$ માં) શોધો.

  • A
    $29$
  • B
    $26$
  • C
    $23$
  • D
    $28$

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

$\sqrt{\frac{1+\cos \theta}{1-\cos \theta}}+\sqrt{\frac{1-\cos \theta}{1+\cos \theta}}=$

વિધેય $f(x) = 3\sin x + 4\cos x$ નું મહત્તમ મૂલ્ય કેટલું છે?

$\sin^2 5^\circ + \sin^2 10^\circ + \sin^2 15^\circ + \dots + \sin^2 85^\circ + \sin^2 90^\circ$ નું મૂલ્ય કેટલું થાય?

$\cos 1^\circ \cdot \cos 2^\circ \cdot \cos 3^\circ \dots \cos 179^\circ = $

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