what is wrong with my calculation?

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Xizeng Feng 2022-4-4

评论： VBBV 2022-4-4

It hints the expresion was wrong when I solve the equations as follow:

>>syms rs xs rp xp

>> [xs,xp]=solve(rs*rp^2/(rs^2+(xs+xp)^2))==rp, xp*rs^2+xs^2*xp+xs*xp^2==0,[xs, xp])

Why?

VBBV 2022-4-4

syms rs xs rp xp

[xs,xp]=solve(rs*rp^2./(rs^2+(xs+xp)^2)==rp, xp*rs^2+xs^2*xp+xs*xp^2==0,[xs, xp])

xs =

xp =

Xizeng Feng 2022-4-4

Oh, I found it! thank you very much!

VBBV 2022-4-4

please accep the answer if it solved , thanks :)

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