1/(x+1/3+1/)fufán mangtèiqīfuzhījúwúhou 1/(2+2m-1/2) hànjǎo wanzhi zi1/(x+y)=1/2;(1+y)/(2x)=1.fuyou zhongbāofushen shengqinfanhongrannán kanxuetúyīcidengjízanxǔmo quanca zhanghuán youháng xingfanggsif=x=(1+x)/(x+2) jian bangmaoziwei ganxi...