计算: 1 - |1-cos30°| + 1/(sin30°)快啊~
问题描述:
计算: 1 - |1-cos30°| + 1/(sin30°)快啊~
答
1-|1-根号3/2|+2
=根号3/2+2
计算: 1 - |1-cos30°| + 1/(sin30°)快啊~
1-|1-根号3/2|+2
=根号3/2+2