2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
问题描述:
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8
答
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)2cos(πx/4-π/2)cos(π/4)cos(πx/4-π/2)2kπ-π/48k+1