April 2019 1 2K Report
Bentuk sin (2x-3π/2) - sin(4x+π/2) ekuivalen dengan

a. -2 sin 3x . sin x
b. -2 cos 3x . sin x
c. 2 sin 2(x-π)
d. 2 sin 3x . sin x
e. 2 cos 3x . sin x

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