[" If direction cosines of two lines are "],[" proportional to "(2,3,-6)" and "(3,-4,5)," then "],[" the acute angle between them is "]

The diection ratios of two lines are proportional to (2,3,-6) and (3,-4,5), then the acute angle between them is

If the direction cosines of two lines are proportional to 2,3,-6 and 3 ,-4,5, then the acute angle between then

The diection cosines of two lines are proportional to (2,3,-6) and (3,-4,5), then the acute angle between them is (A) cos^-1{49/36} (B) cos^-1 {(18sqrt(2))/35} (C) 96^0 (D) cos^-1(18/35)

The diection cosines of two lines are proportional to (2,3,-6) and (3,-4,5), then the acute angle between them is (A) cos^-1{49/36} (B) cos^-1 {(18sqrt(2))/35} (C) 96^0 (D) cos^-1(18/35)

If direction-cosines of two lines are proportional to 4,3,2 and 1, -2, 1, then the angle between the lines is :

Find the direction cosines of the line segment joining the points P(2,3-6) and Q(3,-4,5)

(4) Find the direction cosines of the line joining the points (2,3,4) and (4,5,6).

Find the direction cosines of the line joining the points (2,3,4) and (4,5,6)

If the direction ratios of two lines are (1,2,4) and (-1,-2,-3) then the acute angle between them is

If the direction cosines of any two lines are (-2/3, 1/3, 2/3), (3/5, 4/5, 0) respectively, then the angle between those two lines is