F = 5/x + 100x F' = -5/x^2 + 100 Agar minimum, F' = 0 0 = -5/x^2 + 100 20 = 1/x^2 x^2 = 1/20 x = akar (1/20) = 1/10 (akar 5) Subst ke F F = 5/(1/10 akar 5) + 10 akar 5
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RAJArozi
oh. harus disubstitusikan ya kak????. itu f atau f' ??????
Verified answer
Materi TurunanF = 5/x + 100x
F' = -5/x^2 + 100
Agar minimum, F' = 0
0 = -5/x^2 + 100
20 = 1/x^2
x^2 = 1/20
x = akar (1/20) = 1/10 (akar 5)
Subst ke F
F = 5/(1/10 akar 5) + 10 akar 5