[問題]你的問題
由 tangpakchiu 於 星期五 一月 26, 2007 1:57 pm
#ed_op#DIV#ed_cl#我給sin law 的證明吧~~(但和亞斯的解法相若)#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#CG=HG/sinHCG,GD=GJ/sinGDJ,#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#CG/GD=HG*sinGDJ/GJ*sinHCG,#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#而由HSFG,SEJG共圓知sinHCG=sinLGJ,sinGDJ=sinHGL,#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#CG/GD=HG*sinHGL*GL/GJ*sinLGJ*GL#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#CG/GD=HL/LJ#ed_op#/DIV#ed_cl#