Question

若α、β角的终边互为反向延长线,则有(    )

A.α=-β                                 B.α=k·360°+β(k∈Z)

C.α=180°+β                      D.α=(2k+1)·180°+β(k∈Z)

Answer 1

解析:若α、β∈［0,360°］,有α=180°+β或β=180°+α,

∴α=(2k+1)·180°+β(k∈Z).

答案:D