Cos x = Cos 5/12
X =cos^(-1)??(5/12)?
X =65.38°
Sin x = sin^(-1)??(5/12)?
X =24.63°
Cos (90° –x) = sin x
Since the are complementary to each other
X = 24.63°
Sin (180° –x) = sin (90° – x)
= Cos x
=65.38°
joseph rimiru answered the question on October 1, 2017 at 13:17
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