化简 tan(π?α)cos(2π?α)sin(?α+32π)cos(?α?π)sin(?π?α)=______

化简 tan(π?α)cos(2π?α)sin(?α+32π)cos(?α?π)sin(?π?α)=______.
2025年03月01日 09:54
有1个网友回答
网友(1):

tan(π?α)cos(2π?α)sin(?α+
3
2
π)
cos(?α?π)sin(?π?α)

=
tanαcosαcosα
?cosαsinα

=-1.
故答案为:-1