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1/(2*3.14*2)*ln(2*(0.5/(219+2*42))+sqrt((4*0.25)/(219+2*45)^2) ) *((219+2*42)/219) Почему выходит с минусом ?

 Jun 14, 2021
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You are getting a negative number because you have an unmatched parenthesis. Probably whatever you use to do the computation computes the argument of the natural log (ln) as a number smaller than 1 (<1) and thereby gives you a negative number.

 Jun 14, 2021

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