You can put this solution on YOUR website! 1-m/m /m - 1/m
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(1-m)/m] /(m-(1/m))
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= [(1-m)/m] / [(m^2-1)/m]
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Invert the denominator and multiply:
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= [(1-m)/m] * [m/(m^2-1)]
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= [1/1]
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= -1/(m+1)
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Cheers,
Stan H.