Предмет: Математика, автор: angelina218

Помогите решить 7-й номер умоляюююю

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Ответы

Автор ответа: mixalu4

√2-х↑4 = х²
правую и левою стороны уравнения подносим в квадрат
2-х↑4 =х↑4
2 х↑4 =2
х↑4=1
ответ 1 или -1 (так ка знаменатель четный)
в задании ответ В

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