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4 August, 09:32

Write cos 16 in terms of the sine

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  1. 4 August, 09:55
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    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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