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f(x) = 28x - 6x - 2x⁴
f'(x) = (1)28 - (1)6 - (4)2x⁴ - ¹
f'(x) = 28 - 6 - 8x³
f'(x) = -8x³ + 22
f"(x) = (3)-8x³ - ¹ + 0
f"(x) = -24x² + 0
f"(x) = -24x²
f"(5) = -24(5²)
f"(5) = -24(5.5)
f"(5) = -24(25)
f"(5) = -600
semoga bermanfaat.......
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SOAL 1
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f(x) = 28x - 6x - 2x⁴
f'(x) = (1)28 - (1)6 - (4)2x⁴ - ¹
f'(x) = 28 - 6 - 8x³
f'(x) = -8x³ + 22
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f"(x) = (3)-8x³ - ¹ + 0
f"(x) = -24x² + 0
f"(x) = -24x²
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f"(5) = -24(5²)
f"(5) = -24(5.5)
f"(5) = -24(25)
f"(5) = -600
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semoga bermanfaat.......