L lokanadhareddy Dec 2012 1 0 vijayawada Dec 7, 2012 #1 please give the short form method to solve the following. If the direction ratios of the lines are given by 3lm-4ln+mn=0, l+2m+3n=0. Then find the angle between the lines. regards Lokanadhareddy

please give the short form method to solve the following. If the direction ratios of the lines are given by 3lm-4ln+mn=0, l+2m+3n=0. Then find the angle between the lines. regards Lokanadhareddy