If and ,…

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

If

x + y = \frac{4\pi}{3}

and

\sin x = 2 \sin y

, then (1)

x = n\pi + \frac{\pi}{2}, n \in I

(2)

y = \frac{5\pi}{6} - n\pi, n \in I

(3) Both (a) and (b) (4) None of the above

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