若角a,b满足-90

来源：学生作业帮助网编辑：六六作业网时间：2024/11/25 16:40:02

若角a,b满足-90若角a,b满足-90若角a,b满足-90-180-90加起来

若角a,b满足-90
若角a,b满足-90

若角a,b满足-90
-180 -90 加起来

若角a,b满足-90 若角A,B满足-π/2 若角A、B满足-π/2 若角A、B满足-π/2 若角a,b满足-∏/2 若角a,b满足-派/2 若角a,b满足-π/2 若角a,b满足-π/2 若角A、B满足-π/2 若角A、B满足-π/2 若角A,B满足-π/2 若角A、B满足-π/2 a,b满足0 a,b满足0 实数a,b满足0 角a,b满足0 实数a,b满足0 实数a.b满足-1