HI Crosbie Yes, the VIN / Chassis number are the same. Some are now diplayed on the dash board for authorities to check. If there are different in any way, contact you local DVLA office or VOSA for clarification, just in case.... Hope this helps...
In case of a two dimensional plane, two intersecting lines are said to be perpendicular lines if they intersect at right angles. In the figure, the lines $\overleftrightarrow{AB}$ and $\overleftrightarrow{CD}$ are perpendicular to each other intersecting at the point P. We can write.
Since the product of the slopes is not -1, the lines are not perpendicular! Suppose you are given the two lines 4 x + 3 y = 5 and 3 x - 4 y = 1 and you are asked to determine if the lines are perpendicular. To do this, you must first put both equations in slope-intercept form.