If P(1, 5, 4) and Q(4, 1, - 2) be the position vectors of two points P and Q, find the direction ratios of 
So direction ratios are 3, - 4, - 6.
1
If P(1, 5, 4) and Q(4, 1, - 2) be the position vectors of two points P and Q, find the direction ratios of
So direction ratios are 3, - 4, - 6.