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22 October, 18:07

Simplify sin (3pi minus x)

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  1. 22 October, 20:57
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    sinx

    Step-by-step explanation:

    hello:

    note:

    for all x in ℝ : 1) sin (x+2π) = sinx 2) sin (π-x) = sinx

    in this exercice:

    3π - x = 2π + (π - x)

    sin (3π - x) = sin (2π + (π - x)) = sin (π-x) = sinx
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