Find all values of x in the interval [0, 2pi] that satisfy the equation: 2cos x=- sin 2x

pipantasi4 2022-07-15 Answered
Find all values of x in the interval [ 0 , 2 π ] that satisfy the equation:
2 cos x = sin 2 x
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Answers (2)

Asdrubali2r
Answered 2022-07-16 Author has 14 answers
2 cos x = sin 2 x
2 cos x = 2 sin x cos x
cos x sin x cos x = 0
cos x ( 1 + sin x ) = 0
cos x = 0       sin x = 1
x = π 2 ; 3 π 2       x = 3 π 2
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Jeffrey Jordon
Answered 2022-08-01 Author has 2581 answers

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