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Math: Solving Trig Equation

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9tan (x) - 9 sec^2 (x)/ tan (x)

  • Math: Solving Trig Equation - ,

    there's no equation
    the expression is equivalent to

    (9tan^2-9sec^2)/tan
    and since sec^2-tan^2=1, that's just
    -9/tan

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