柯西不等式:已知 m²+n²+l²=25 x²+y²+z²=36 mx+ny+lz=30 求(m+n+l)/(x+
问题描述:
柯西不等式:已知 m²+n²+l²=25 x²+y²+z²=36 mx+ny+lz=30 求(m+n+l)/(x+
答
柯西不等式:已知 m²+n²+l²=25 x²+y²+z²=36 mx+ny+lz=30 求(m+n+l)/(x+