tex]...

July 2022 1 4 Report

4.11. Сократите дробь [tex] \frac{a-1}{ \sqrt{a}-1 } [/tex]
4.12. Сократите дробь [tex] \frac{ \sqrt{a}+1 }{a-1} [/tex]

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dani1kark $\frac{a-1}{ \sqrt{a}-1 } = \frac{(a-1)( \sqrt{a}+1) }{a-1} = \sqrt{a} +1$
$\frac{ \sqrt{a}+1 }{a-1} = \frac{ (\sqrt{a}+1)( \sqrt{a}-1)}{ (a - 1)( \sqrt{a}-1) } = \frac{a-1}{ (a - 1)( \sqrt{a}-1) } = \frac{1}{ \sqrt{a}-1} 
$
вот только тут дольше как ни преобразовывай, не уйдет дробь

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otmette pod sootvetstvuyushej bukvoj vernye i oshibochnye suzhdeniya znakami i87e733d151f5a86191a6688350962649 65295

otmette pod sootvetstvuyushej bukvoj vernye i oshibochnye suzhdeniya znakami i37062664a04684258a78036e7229c509 43976

otmette pod sootvetstvuyushej bukvoj vernye i oshibochnye suzhdeniya znakami i7e05bf2f30f65ac2e32b5e06bfdc6caa 22966

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