问题
填空题
sin45°cos60°+sin30°=______．
答案
sio45°cos60°+sio30°
=
×2 2
+1 2 1 2
=
=
+22 4
+1 2
．2 4
搜题请搜索小程序“爱下问搜题”
sin45°cos60°+sin30°=______．
sio45°cos60°+sio30°
=
×2 2
+1 2 1 2
=
=
+22 4
+1 2
．2 4