∫cos(x+α)dx=()

∫cos(x+α)dx=()
A、sin(x+α)+C(α≠0)
B、αsin(x+α)+C(α≠0)
C、αcoss(x+α)+C(α≠0)
D、(1/α)cos(x+α)+C(α≠0)
【正确答案】：A