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Math

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Prove each of the following identities.
a)tan^2x = 1 – cos^2x/cos^2x
b)sinx/1 – sin^2x = tanx/cosx

  • Math -

    a)

    RS = sin^2x/cos^2x
    = LS

    b) LS = sinx/cos^2x
    = (sinx/cosx)/cosx
    = tanx/cosx
    = RS

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