Parallel lines are a fixed distance apart and will never meet, no matter how long they are extended. Lines that are parallel have the same gradient. The graphs above, \(y = 2x + 1\) and \(y = 2x - 2\) ...

In mathematics, the cross product of two vectors is a third vector that is perpendicular to both the initial vectors. The cross product is widely used in physics and engineering to describe the ...