2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8的解集
问题描述:
2sin(πx/4-π/4)+6<2sin(πx/4-3π/4)+8的解集
答
sin(πx/4-π/4)-sin(πx/4-3π/4)
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)