X1²+X2²=什么 X1+X2=3/2 X1X2=-1/2
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/07 05:24:12
![X1²+X2²=什么 X1+X2=3/2 X1X2=-1/2](/uploads/image/z/8574956-44-6.jpg?t=X1%26%23178%3B%EF%BC%8BX2%26%23178%3B%3D%E4%BB%80%E4%B9%88+X1%2BX2%3D3%2F2+X1X2%3D-1%2F2)
x)0TS64~;´}C#[c}# 57I*'U~
+քt4Z"Z &6yvP9qF
Fq@m@fPSV G|R:
X1²+X2²=什么 X1+X2=3/2 X1X2=-1/2
X1²+X2²=什么 X1+X2=3/2 X1X2=-1/2
X1²+X2²=什么 X1+X2=3/2 X1X2=-1/2
X1²+X2²=(X1+X2)²-2X1X2=(3/2)²-2*(-1/2)=13/4
x1^2 x2^2=(x1 x2)^2-2*x1*x2=13/4