Matematika

Pertanyaan

integral 8x^2/(x^3 -2)^5=.....

2 Jawaban

  • misal u = x³-2
    du = 3x² dx
    dx = du/(3x²)

    ∫8x²u^5 dx
    ∫8x² u^5 du/3x²
    ∫8/3 u^5 du
    (8/3+1) u^6
    u^6
    (x³-2)^6
  • misalkan
    u = x³-2
    du= 3x² dx
    dx= du/(3x²)

    ∫8x²/u⁵ dx
    =∫8x²/u⁵ du/3x²
    =∫8/3 1/u⁵ du
    =8/3 ∫u⁻⁵ du
    =8/3 -1/4u⁻⁴ +C
    =-2/3 u⁻⁴ +C
    =-2/3 (
    x³-2)⁻⁴ +C
    =-2/(3(
    x³-2)⁴) +C

Pertanyaan Lainnya