用配方法化二次型f(x1,x2,x3)=x12+2x1x2+2x1x3一4x32为标准形.

admin2016-10-24  26

问题 用配方法化二次型f(x1,x2,x3)=x12+2x1x2+2x1x3一4x32为标准形.

选项

答案f(x1,x2,x3)=x12+2x1x2+2x1x3一4x32=(x1+x2+x3)2一(x2+x3)2一4x32, [*] 则f(x1,x2,x3)=XTAX[*]Y12一y22一4y32

解析
转载请注明原文地址:https://kaotiyun.com/show/a7T4777K
0

随机试题
最新回复(0)