Find the angle between the following pair of lines: A lines with direction ratios 1,1,1 A line joning (2,1,4)to (7,2,12)

Find the angle between the following pair of lines: A lines with direction ratios 2,2,1 A line joning (3,1,4)to (7,2,12)

Find the angle between the pairs of lines with direction ratio proportional to: 2, 2, 1 and 4, 1, 8

Find the angle between the pairs of lines with direction ratio proportional to: 1, 2, -2, and -2, 2, 1

The angle between a line with direction ratios lt 2, 2, 1gt and a line joining the points (3,1,4) and (7,2,12) is

Find the angle between the pairs of lines with direction ratio proportional to: 5, -12, 13 and -3, 4, 5

Find the angle between the line whose slope are 2 and -1 .

Find angle between the two lines whose direction ratios are 1,-2,1 and 4,3,2 respectively

Find the angle between the lines whose slopes are -3 and -1/(2) .

Find the shortest distance between the following pair of lines and hence write whether the lines are intersecting or not : (x-1)/2=(y+1)/3=z ;(x+1)/5=(y-2)/1; z=2

Find the shortest distance between the following pair of lines and hence write whether the lines are intersecting or not : (x-1)/2=(y+1)/3=z ;(x+1)/5=(y-2)/1 = z - 2