来一个解抛砖引玉！
askerfor
2026-05-04 16:48:21
( reads)
Let DF/FC=x/(1-x)
S(ADE)=4(x/(1-x))^2=(30+19)x^2
x=5/7
S(ADE)=49*25/49=25
Let DF/FC=x/(1-x)
S(ADE)=4(x/(1-x))^2=(30+19)x^2
x=5/7
S(ADE)=49*25/49=25
贫论贫论
2026-05-05 11:54:15Good