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  • Trig -

    Are you showing that they are identities ?

    if so,
    LS = (sin^2t/cos^2t)(cost)
    = sin^2t/cost

    RS = 1/cost - cost
    = (1 - cos^2t)/cost
    = sin^2t/cost
    = LS

    The second one works the same way, try it.

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