Integral (3×+1)pangkat6dx=
Matematika
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Pertanyaan
Integral (3×+1)pangkat6dx=
1 Jawaban
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1. Jawaban DB45
IntegraL suBstiTUsi
∫ (3x + 1)⁶ dx
u = 3x + 6
du = 3 dx
dx = 1/3 du
∫ (3x + 1)⁶ dx = ∫ u⁶ (¹/₃) du
= ¹/₃. ¹/₇ u⁷ + c
= ¹/₂₁ u⁷ + c
= ¹/₂₁ (3x + 6)⁷ + c