A line L passing through the focus of th...

A line `L` passing through the focus of the parabola `y^2=4(x-1)` intersects the parabola at two distinct points. If `m` is the slope of the line `L ,` then (a) `-1< m <1` (b) `m<-1` or `m >1` (c) `m in R` (d) none of these

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