Matematika

Pertanyaan

Tentukan hasil dari integral (2x-1) √2x²-2x dx adalah

2 Jawaban

  • jika gini
    int (2x - 1)√(2x² - 2x) dx
    u = 2x² - 2x → du = (4x - 2) dx → du = 2(2x - 1) dx
    (2x - 1) dx = (1/2) du
    = int (1/2)√u du
    = (1/2)(2/3)u^(3/2) + c
    = (1/3)(2x² - 2x)^(3/2) + c
    = (1/3)√(2x² - 2x)³ + c, atau
    = (2x/3)(x - 1)√(2x² - 2x) + c
  • jika gini
    int (2x - 1)√(2x² - 2x) dx
    u = 2x² - 2x → du = (4x - 2) dx → du = 2(2x - 1) dx
    (2x - 1) dx = (1/2) du
    = int (1/2)√u du
    = (1/2)(2/3)u^(3/2) + c
    = (1/3)(2x² - 2x)^(3/2) + c
    = (1/3)√(2x² - 2x)³ + c, atau
    = (2x/3)(x - 1)√(2x² - 2x) + c

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