Skorr

Hasil dari ∫ 0²3(x+1)(x-6) dx

Kalkulus Matematika · SMA medium

Hasil dari 023(x+1)(x6)dx=....\displaystyle\int_{0}^{2}3(x+1)(x-6)\,dx=....

  1. A
    58-58
  2. B
    56-56
  3. C
    28-28
  4. D
    16-16
  5. E
    14-14

Kunci jawaban

A

Penjelasan singkat

3(x+1)(x6)=3(x25x6)3(x+1)(x-6)=3(x^2-5x-6). 02=3[x335x226x]02=3(831012)=58\int_0^2=3\left[\tfrac{x^3}{3}-\tfrac{5x^2}{2}-6x\right]_0^2=3\left(\tfrac83-10-12\right)=-58.

3(x+1)(x6)=3(x25x6)=3x215x183(x+1)(x-6)=3(x^2-5x-6)=3x^2-15x-18.

02(3x215x18)dx=[x315x2218x]02=83036=58\int_0^2(3x^2-15x-18)\,dx=\left[x^3-\tfrac{15x^2}{2}-18x\right]_0^2=8-30-36=-58.

Jawabannya A.

⚡ Latihan Matematika SMA