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10 December, 02:49

Prove each identify

cos X (tanX+cotX) = cscX

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  1. 10 December, 03:04
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    Step-by-step explanation:

    cos X (tanX+cotX) = cscX

    cos X (sinx/cosx + cosx/sinx) = cscx

    cos X (sin²+cos²/cossin) = cscx

    cosx (1/cossin) = cscx

    cross out cosines

    1/sinx=cscx
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