Ответ:
Пошаговое объяснение:
175. (b-(1/b))²=12 (b+(1/b))²=?
(b-(1/b))²=b²-2*b*(1/b)+(1/b)²=b²+(1/b)²-2=12
b²+(1/b)²=14
(b+(1/b))²=b²+2*b*(1/b)+(1/b)²=b²+(1/b)²+2=14+2=16.
Ответ: (b+(1/b))=16.
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Ответ:
Пошаговое объяснение:
175. (b-(1/b))²=12 (b+(1/b))²=?
(b-(1/b))²=b²-2*b*(1/b)+(1/b)²=b²+(1/b)²-2=12
b²+(1/b)²=14
(b+(1/b))²=b²+2*b*(1/b)+(1/b)²=b²+(1/b)²+2=14+2=16.
Ответ: (b+(1/b))=16.