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njhieyjdf
@njhieyjdf
August 2022
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Найдите точку минимума функции y=x
²-14x+20ln x-6
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sedinalana
:))))))))))))))))))))))
1 votes
Thanks 2
Dимасuk
Verified answer
Y=x²-14x+20lnx-6
y`=2x-14+20/x=(2x²-14x+20)/x
(2x²-14x+20)/x=0
x²-7x+10=0,x≠0
x1+x2=7 U x1*x2=10
x1=2 U x2=5
+ _ +
-------------------(2)------------------(5)----------------------
min
3 votes
Thanks 2
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Answers & Comments
Verified answer
Y=x²-14x+20lnx-6y`=2x-14+20/x=(2x²-14x+20)/x
(2x²-14x+20)/x=0
x²-7x+10=0,x≠0
x1+x2=7 U x1*x2=10
x1=2 U x2=5
+ _ +
-------------------(2)------------------(5)----------------------
min