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Bab Differensial
Matematika SMA Kelas XI

1] f(x) = 20 x^(3 1/2) + 2 x^(2 1/2) + 10x
f'(x) = (3 1/2) . 20 . x^(3 1/2 - 1) + (2 1/2) . 2 . x^(2 1/2 - 1) + 10
f'(4) = (7/2) . 20 . 4^(5/2) + (5/2) . 2 . 4^(3/2) + 10
f'(4) = 70 . 32 + 5 . 8 + 10
f'(4) = 2.240 + 40 + 10
f'(4) = 2.290