Предмет: Алгебра, автор: esonia4002

40 баллов!!!! Найдите наименьшее значение функции

Приложения:

Ответы

Автор ответа: table123
1

Ответ: -11

Объяснение:

y'=-7-7V2(-sinx)=-7+7V2sinx,  -7+7V2sinx=0,  поделим на 7,

V2 sinx=1,  sinx=V2/2,  x=p/4,  теперь надо подставлять

значения  0,  р/4,  р/2  в функцию,

y(0)=3+7p/4-7*0-7V2cos0=3+7p/4 -7V2 *1

y(p/4)=3+7p/4-7*p/4 -7V2*cos (p/4)=3-7V2 *V2 /2=3-14=-11

y(p/2)= .........   на ЕГЭ  ответ идет без Пi

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