જો $a \sin \theta = b \cos \theta$,જ્યાં $a, b \neq 0$,તો $a \cos 2 \theta + b \sin 2 \theta = $

  • A
    $ab$
  • B
    $a$
  • C
    $b$
  • D
    $\frac{a}{b}$

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Similar Questions

જો $\sec x + \tan x = 2$,જ્યાં $0 < x < \frac{\pi}{2}$ હોય,તો $\sin \frac{x}{4}$ ની કિંમત શોધો.

કિંમત શોધો: $\csc A - 2 \cot 2A \cos A$

$\sqrt{2} + \sqrt{3} + \sqrt{4} + \sqrt{6}$ ની કિંમત શોધો.

જો $\cos A = \frac{\sqrt{3}}{2}$ હોય,તો $\tan 3A = $

$\cos ^4 \frac{\pi}{8}+\cos ^4 \frac{3 \pi}{8}+\cos ^4 \frac{5 \pi}{8}+\cos ^4 \frac{7 \pi}{8}=$

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