直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?

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直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?x=2代入(y

直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?
直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?

直线x=2被圆(x-2)^2+(y+1)^2=4所截弦长等于?
x=2
代入
(y+1)²=4
y1=-3,y2=1
所以弦长是|y1-y2|=4