Ответ:
Объяснение:
8/(-√7+1)= 8/(1-√7)= 8/(1-√7) * (1+√7)/(1+√7)=
=8(1+√7)/ (1-√7)(1+√7)=(8+8√7)/ (1-7) = (8+8√7)/-6 =
=- (4+4√7) /3
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Ответ:
Объяснение:
8/(-√7+1)= 8/(1-√7)= 8/(1-√7) * (1+√7)/(1+√7)=
=8(1+√7)/ (1-√7)(1+√7)=(8+8√7)/ (1-7) = (8+8√7)/-6 =
=- (4+4√7) /3