Page 131 - 6099
P. 131
Z
1 x
x sin ax dx = sin ax − cos ax
a 2 a
Z 2 2
2x a x − 2
2
x sin ax dx = sin ax − cos ax
a 2 a 3
Z
1 x
x cos ax dx = cos ax + sin ax
a 2 a
Z 2x cos ax a x − 2
2 2
2
x cos ax dx = + sin ax
a 2 a 3
124
