Nilai c sehingga f^” (c)=0 bila f(x) = x^3+3x^2-45x-6

Posted by andi telaumbanua on Feb 13, 2018 in Matematika |
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Tentukan nilai c sehingga f^” (c)=0 bila f(x) = x^3+3x^2-45x-6 !

Jawab:

f^’ (x)= 3x^2+ 6x-45

f^” (x)= 6x+ 6

Maka :

f^” (x)= 0

6x+ 6=0

x= (-6)/6

x = -1

maka:

nilai c adalah – 1 agar f^” (c)= 0

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Tentukan nilai c sehingga f^” (c)=0 bila f(x) = x^3+3x^2-45x-6 !

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