Предмет: Алгебра, автор: Ливви

Помогите..
корень из а + корень из b делить на a-b

Ответы

Автор ответа: mishka19
0
frac{ sqrt{a}+ sqrt{b} }{a-b}= frac{ sqrt{a}+ sqrt{b} }{( sqrt{a})^2 -( sqrt{b} )^2}=frac{ sqrt{a}+ sqrt{b} }{(sqrt{a}- sqrt{b} )(sqrt{a}+ sqrt{b} )}= frac{1}{sqrt{a}- sqrt{b} }
Автор ответа: Ливви
0
Я правильно сделал, здорово! Спасибо вам. ~~
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