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25 June, 21:26

Find all solutions to the equation. (sin x) (cos x) = 0

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  1. 25 June, 22:45
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    Hello:

    (sin x) (cos x) = 0

    sinx = 0 or cosx = 0

    all solutions in : R

    1) sinx = 0 : x = k π ... k ∈ Z

    2) cosx = 0 : x = π/2 + kπ ... k∈ Z
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