-108°和-225°怎么化成2kπ+a(0≤a<2π,

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-108°和-225°怎么化成2kπ+a(0≤a<2π,

-108°和-225°怎么化成2kπ+a(0≤a<2π,
-108°和-225°怎么化成2kπ+a(0≤a<2π,

-108°和-225°怎么化成2kπ+a(0≤a<2π,
-108°
=2kπ+2π-108°
=2kπ+360°-108°
=2kπ+252°
-108°
=2kπ+2π-225°
=2kπ+360°-225°
=2kπ+135°