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x1*x3=2625 20*log(x1*(55+35+x3)*1/(55*(x3+35)))=2 20*log((1-(x3+75)*(x1+35))*1/(x1*(x3+75)))=2 20*log(x4*(x3+35+55)*1/(55*x3))=50

Дано $$x_{1} x_{3} = 2625$$ /x1*(90 + x3) 20*log|————| = 2 55*(x3 + 35)/ $$20 log{left (frac{x_{1} left(x_{3} + 90right)}{55 left(x_{3} + 35right)} right )} = 2$$ /1 – (x3 + 75)*(x1 + 35) 20*log|———————–| = 2 x1*(x3 + 75)…

3/8=18750*x+400*y 239/1000=2500*x+11950*y

Дано $$frac{3}{8} = 18750 x + 400 y$$ 239 —- = 2500*x + 11950*y 1000 $$frac{239}{1000} = 2500 x + 11950 y$$ Подробное решение Дана система ур-ний$$frac{3}{8} = 18750 x + 400 y$$$$frac{239}{1000} = 2500 x + 11950 y$$ Из…

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