Предмет: Алгебра, автор: Аноним

номер 64 . найдите значения выражения наиболее рациональным способом. все 6

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Автор ответа: litanalove

64. 1) √(61² -60²) =√(61 -60)(61+60) =√1*121 =√121=11

2) √(113² -112²) =√(113 -112)(113+112) =√225=15

3),4) и 5) так же

6) √5 *√(23² -22²) =√5 *√(23 -22)(23+22) = √5 *√45 =√(5*45) =√225 =15

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