If the d.r.'s of a line are (3, -4, 12) then d.c.'s of the line are

If the d.r.s of the two lines are 1,1,2, -1,2,1 then d.c.s of a line which is perpendicular to both of them are

If the d.r.'s of two lines are (1, -1, 0) and (1, -2, 1) then the angle between them is

If the d.r.'s of two lines are (1,0,0) and (0,1,0) then the angle between those two lines is,

If the d.r.'s of two lines are (x, 3, 5) and (2, -1, 2) and if the angle between those lines is 45^(@) , then the value of x is

If the d.r's of two lines are (x,3,5) and (2,-1,2) and if the anlgle between those lines is 45^(@) , then x =

If the d.r's of the lines are 2,1,-2 and 3,-2,6 then the d.r,s of the line perpendicular to both the given lines is

If the d.c.'s are (l, m, n) whose d.r's of a ray are (3, -4, 12) then ascending order of l, m, n is

If the d.R.s of two lines are 1,-2,-2 and 2,-2,1 , then the measures of the acute angle between them is

If (1,-2,-2) and (0,2,1) are the d.r's of two lines then the d.r's of a line perpendicular to both the lines are "