[" Find the angle between those lines whose direction cosines are related as "],[3l+m+5n=0],[" and "quad 6mn-2nl+5lm=0]

Find the angle between the lines whose direction cosines are given by the equations 3l+m+5n=0 and 6mn-2nl+5lm=0

Find the angle between the lines, whose direction cosines are given by the equation 3l+m+5n=0 and 6mn-2nl+5lm=0 .

Find the angle between the lines whose direction cosines are given by the equations 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

Find the angle between the lines whose direction cosines are given by the equations 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

Find the angle between the lines whose direction cosines are given by the equations 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

Find the angle between the lines whose direction cosines are given by the equations 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0 (a) cos^(-1)((1)/(sqrt(6))) (b) cos^(-1)((-1)/(6)) (c) cos^(-1)((2)/(sqrt(6))) (d) cos^(-1)((-2)/(sqrt(6)))

Find the angle between the lines whose direction cosines are given by the equation 3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0