The acute angle between the two lines with direction ratios (1,-2,-2) and (2,-2,1) is

The acute angle between the lines whose direction ratios are 1, 2, 2 and -3, 6, -2 is

The acute angle between the lines whose direction ratios are 3, 2, 6 and -2, 1, 2 is

The acute angle between the lines having direction ratios 5,4,1 and -3,2,1 is

The acute angle between the lines having direction ratios 5,4,1 and -3,2,1 is

Find the obtuse angle between the lines with direction ratios '3,-6,2' and '1,-2,-2 .'

Find 'x' if the angle between he lines with direction ratios (x,4,5) and (2,-1,2) is 90^(@)

The acute angle between the lines whose direction ratios are 1, 1, 2 and sqrt(3)-1, -sqrt(3)-1,4 is

Find the angle between the pair of lines with direction ratios given by 1,2,-2" and "2,-2,1

If the cosine of the angle between the lines with direction ratios 1, -1, 2 and 0, 1, k is (sqrt(3))/(2) , then k =

The acute angle between the lines whose direction ratios are 1, 1, 2 and sqrt(3)-1, -sqrt(3)-1,4 is: a) 30^(@) b) 45^(@) c) 60^(@) d) 90^(@)