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log(1/3)*(x+y)=2 log(1/3)*(x-y)=2

Дано $$left(x + yright) log{left (frac{1}{3} right )} = 2$$ log(1/3)*(x – y) = 2 $$left(x – yright) log{left (frac{1}{3} right )} = 2$$ Подробное решение Дана система ур-ний$$left(x + yright) log{left (frac{1}{3} right )} = 2$$$$left(x – yright) log{left…

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