જો $\cos(\alpha + \beta) = 0$ હોય,તો $\sin(\alpha + 2\beta) =$

  • A
    $\sin \alpha$
  • B
    $-\sin \alpha$
  • C
    $\cos \beta$
  • D
    $-\cos \beta$

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Similar Questions

બધા ત્રિકોણમિતીય વિધેયો કેવા પ્રકારના વિધેયો છે?

જો $A$ અને $B$ પૂરક ખૂણાઓ હોય,તો $\sin^{2} \frac{A}{2} + \sin^{2} \frac{B}{2} =$

$\cos ^2 45^{\circ}+\cos ^2 135^{\circ}+\cos ^2 225^{\circ}+\cos ^2 315^{\circ} = $

સાબિત કરો કે:
$2 \sin ^{2} \frac{\pi}{6}+\csc ^{2} \frac{7 \pi}{6} \cos ^{2} \frac{\pi}{3}=\frac{3}{2}$

જો $A = \sin 45^{\circ} + \cos 45^{\circ}$ અને $B = \sin 44^{\circ} + \cos 44^{\circ}$ હોય,તો

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