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Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation

4. sine of x divided by one minus cosine of x + sine of x divided by one minus cosine of x = 2 csc x

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  1. Today, 06:29
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    (sin x) / (1-cosx) + sinx / (1-cosx) =

    2 csc x

    We have like denominators.

    Just add the numerators.

    (2 sin x) / (1 - cos x) = 2 csc x

    [1 / (1 - cos x) ] (2 sin x) = 2 csc x

    Take it from here.
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