(a^2 / b^2-1) : (1 /a +1 /b ) ПЖ СРОЧНО. Created by sofiyaduachuck. algebra-ru

b ) ПЖ СРОЧНО...

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(a^2 / b^2-1) : (1 /a +1 /b ) ПЖ СРОЧНО

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vedma4ka1604

$(\frac{a^2}{b^2}-1):(1/a+1/b)=(\frac{a^2-b^2}{b^2}):( \frac{a+b}{ab})= \frac{(a^2-b^2)ab}{b^2(a+b)}= \frac{ab(a+b)(a-b)}{b^2(a+b)}= \frac{a(a-b)}{b}$

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Answers & Comments

chomu cheski vijni nazivalis gusitskimipzhsrochno na ukr movi

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