求定积分∫sin（x+派/3）dx的上限是派,下限是派/3我的解答求不定积分是--cos(x+派/3)|派|派/3

Question

求定积分
∫ sin（x+派/3）dx 的上限是 派,下限是 派/3
我的解答求不定积分是 --cos(x+派/3) | 派
| 派/3

Answer 1

∫sin(x+π/3)dx (a=π/3 b=π)
=-cos(x+π/3)| (a=π/3 b=π)
=-cos(π+π/3)+cos(π/3+π/3)
=-cos(4π/3)+cos(2π/3)
=0