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已知两圆的半径分别是一元二次方程的两个根,若这两个圆的圆心距
已知两圆的半径分别是一元二次方程的两个根,若这两个圆的圆心距
已知两圆的半径分别是一元二次方程
的两个根,若这两个圆的圆心距为
5
,则这两个圆的位置关系是
(
)
A
.相离
B
.外切
C
.相交
D
.内切
答案
C
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