m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
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m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
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m,-n为方程x^2+3x-1=0两个根
mn=1,m-n=-3
n=(-3±√13)/2
(m^2*n^2+1)/n^2
=2/n^2
=11±3√13
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