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Verified answer
Bab IntegralMatematika SMA Kelas XI
₃ ₃
a] ∫ (2/3x) dx = (2/3) ∫ (1/x)
² ² ₃
= (2/3) ( [ln x ] ) |
²
= (2/3) (ln 3 - ln 2)
= (2/3) (1,0986 - 0,6931)
= (2/3) . 0,4055
= 0,2703
₃ ₃
b] ∫ ((2x² + 1)/x) dx = ∫ (2x + 1/x) dx
¹ ¹
₃
= (x² + [ln x] ) |
¹
= (3³ + ln 3) - (1² + ln 1)
= (9 + 1,0986) - (1 + 0)
= 10,099 - 1
= 9,099
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