integral x akar (5+x)
Matematika
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Pertanyaan
integral x akar (5+x)
1 Jawaban
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1. Jawaban alvinindra99
Jawaban :
∫ x ⁵√(x+3)² dx
= ∫ x (x+3)²/⁵ dx
u= x+ 3 --> x = u - 3
du = dx
.
= ∫ (u - 3)(u)²/⁵ du
= ∫ - 3u²/⁵ + u⁷/⁵ du
= - 3(⁵/₇) u⁷/⁵ + ⁵/₁₂ u¹²/⁵ + c
= - (¹⁵/₇) u ⁷/⁵ + ⁵/₁₂ u¹²/⁵ + c
= - (¹⁵/₇ - ⁵/₁₂ u) u⁷/⁵+ c
= - (¹⁵/₇ - ⁵/₁₂ u) u ⁵√ u² + c
= - (¹⁵/₇ - ⁵/₁₂ (x+3)) ⁵√(x+3)² + c