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D( x )
x/0.0002 <= 0
x/0.0002 <= 0
x/0.0002 <= 0
5000*x+0 <= 0 // - 0
5000*x <= 0 // : 5000
x <= 0/5000
x <= 0
x in (0:+oo)
-7.3 = 0.00831*298*ln(x/0.0002) // - 0.00831*298*ln(x/0.0002)
-(0.00831*298*ln(x/0.0002))-7.3 = 0
-2.47638*ln(x/0.0002)-7.3 = 0
-2.47638*ln(x/0.0002)-7.3 = 0 // + 7.3
-2.47638*ln(x/0.0002) = 7.3 // : -2.47638
ln(x/0.0002) = 7.3/(-2.47638)
ln(x/0.0002) = -2.9478513
ln(x/0.0002) = ln(e^-2.9478513)
x/0.0002 = e^-2.9478513
x/0.0002-e^-2.9478513 = 0
5000*x-e^-2.9478513 = 0 // + e^-2.9478513
5000*x = e^-2.9478513 // : 5000
x = (e^-2.9478513)/5000
x = (e^-2.9478513)/5000
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