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3tan(x) = 2sin(2x) from [0,2 pi)

(Please explain steps)

User Gabbie
by
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1 Answer

4 votes

Answer:

The answer is "
\bold{(\pi)/(6)}"

Explanation:


\to 3 \tan(x) = 2 \sin(2x) \\\\


\to 3 (\sin x)/(\cos x) = 2 2\sin x \cos x \\\\\to 3 (\sin x)/(\cos x) = 4\sin x \cos x \\\\\to (\sin x)/(\cos x \sin x \cos x ) = (4)/(3) \\\\\to (1)/(\cos^2 x ) = (4)/(3) \\\\\to \sec^2 x = (4)/(3) \\\\\to \sec x = (2)/(√(3)) \\\\\to \sec x= \sec (\pi)/(6) \\\\ \to x= (\pi)/(6)

User Jochen Kalmbach
by
4.7k points
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