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Sonulohani · Answer 1 · 2019-10-16T09:04:41+0000

For complementary angles; or acute angles
Sin x = Cos y, such that x + y = 90
Therefore; if x = 16 then y = 90-16 = 74
Hence;
Cos 16 = (sine 90-6)
Cos 16 = Sine 74
Hence in terms of sine; cos 16 is equal to Sine 74°

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