Hasil dari integral 4xpangkat2 cos (3x+5)dx...

jawab

∫ (4x²).cos (3x + 5)


4x².....cos (3x+5)
8x.......1/3 sin(3x + 5)
8........-1/9 cos(3x+5)
0........-1/27 sin (3x+5)

= 4/3 x² sin (3x+5)  + 8/9 x cos (3x+5) - 8/27 sin(3x+5)
= (4/3 x² - 8/27)  . sin(3x +5)  + 8/9x  cos (3x+5)