X.f(x) = 40x⁵ + 5x³f”(x) = ..​

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X.f(x) = 40x⁵ + 5x³f”(x) = ..​

Jawab:
f''(x) = 800x³ + 30x

Penjelasan dengan langkah-langkah:
Diketahui :
f(x) = 40x⁵ + 5x³
Ditanya f''(x)

f''(x) = (40x⁵)'' + (5x³)''
Turunan kedua
(axⁿ)'' = a(n)(n-1)xⁿ⁻²
maka
f''(x) = 40(5)(5-1)x⁵⁻² + 5(3)(3-1)x³⁻²
f''(x) = 200(4)x³ + 15(2)x
f''(x) = 800x³ + 30x

[[ KLF ]]

Penjelasan dengan langkah-langkah:

f(x) = 40x⁵ + 5x³

f'(x) = 5×40x^(5-1) + 3×5x^(3-1)

f'(x) = 200x⁴ + 15x²

f''(x) = 4×200x^(4-1) + 2×15x^(2-1)

f''(x) = 800x³ + 30x