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Pavidlo9000
@Pavidlo9000
July 2022
1
12
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Найдите наибольшее значение функции
y=9x-8sinx+7
На отрезке [-п/2;0]
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sharadi
Verified answer
У' = 9 - 8Cosx
9 - 8Cosx = 0
Cosx = 9/8
∅
критических точек нет, значит, будем искать значения функции на концах указанного промежутка:
а)х = - π/2 б)
у = 9*(-π/2) - 8Sin(-π/2) = -9π/2 +8
б) х = 0
у = 9*0 -8Sin0 = 0
Ответ: max y = y(0) = 0
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Answers & Comments
Verified answer
У' = 9 - 8Cosx9 - 8Cosx = 0
Cosx = 9/8
∅
критических точек нет, значит, будем искать значения функции на концах указанного промежутка:
а)х = - π/2 б)
у = 9*(-π/2) - 8Sin(-π/2) = -9π/2 +8
б) х = 0
у = 9*0 -8Sin0 = 0
Ответ: max y = y(0) = 0