(文)若 sin( π 2 +α)=m ,则cosα=______

(文)若 sin( π 2 +α)=m ,则cosα=______.
2025-06-20 19:25:15
推荐回答(1个)
回答1:

根据诱导公式可得 sin(
π
2
+α)=m
=cosα,
故答案为:m.