学帮网(1+sin2x)/cos2x=tan(π/4+x)
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/30 01:19:28
(1+sin2x)/cos2x=tan(π/4+x)
(1+sin2x)/cos2x
=[1-cos(2x+π/2)]/sin(π/2+2x)
=2sin²(x+π/4)/[2sin(π/4+x)cos(π/4+x)]
=sin(x+π/4)/cos(x+π/4)
=tan(π/4+x)
收录互联网各类作业题目，免费共享学生作业习题
慧海网手机作业共收录了 千万级 学生作业题目
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/30 01:19:28
(1+sin2x)/cos2x=tan(π/4+x)
(1+sin2x)/cos2x
=[1-cos(2x+π/2)]/sin(π/2+2x)
=2sin²(x+π/4)/[2sin(π/4+x)cos(π/4+x)]
=sin(x+π/4)/cos(x+π/4)
=tan(π/4+x)