bantu skrg 1 soal pliss tolong

Integral Parsial
(dengan tabel Tanzalin)
∫x³ cos x dx =

def......integral
x³ .......cos x
3x²......sin x
6x.......-cos x
6.........-sin x
0..........cosx
...
∫ x³  cos x dx = x³ sin x - 3x²(-cos x) + (6x)(-sin x) - 6(cos x) + c
= x³ sin x + 3x² cos x - 6x sin x - 6 cos x + c
= (x³ - 6x) sin x + (3x² - 6) cos x + c