AB的倾斜角为60度,
所以k=tan60=√3
y^2=4x,焦点(1,0)
所以y=√3(x-1)
3(x-1)^2=4x
3x^2-10x+3=0
x1+x2=10/3,x1*x2=1
(x1-x2)^2=(x1+x2)^2-4x1*x2=64/9
(y1-y2)^2=[(√3x1-√3)-(√3x2-√3)]^2=[√3(x1-x2)]^2
=3(x1-x2)^2=64/3
所以AB^2=(x1-x2)^2+(y1-y2)^2
=256/9
|AB|=16/3
AB的倾斜角为60度,
所以k=tan60=√3
y^2=4x,焦点(1,0)
所以y=√3(x-1)
3(x-1)^2=4x
3x^2-10x+3=0
x1+x2=10/3,x1*x2=1
(x1-x2)^2=(x1+x2)^2-4x1*x2=64/9
(y1-y2)^2=[(√3x1-√3)-(√3x2-√3)]^2=[√3(x1-x2)]^2
=3(x1-x2)^2=64/3
所以AB^2=(x1-x2)^2+(y1-y2)^2
=256/9
|AB|=16/3