2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 11:57:06
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+82sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+82sin(πx/4-π/4)+6<2sin(πx/4-3π/4)
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8的解集
sin(πx/4-π/4)-sin(πx/4-3π/4)<1
2cos(πx/4-π/2)cos(π/4)<1
cos(πx/4-π/2)<√2/2
2kπ-π/4<πx/4-π/2<2kπ+π/4
8k+1