Introduction to 3DEasy
Question
If the angle between the lines whose direction ratios are 2, −1, 2 and a, 3, 5 be 45o, then a =
Options
A.1
B.2
C.3
D.4
More Introduction to 3D Questions
If zx plane divides the line joining the points (1, −1, 5) and (2, 3, 4) in the ratio l :1 then l equals to −...The direction cosines of any normal to the xz-plane is -...The value of k for which the planes 3x − 6y − 2z = 7 and 2x + y − kz = 5 are perpendicular to each oth...The plane containing the lines and -...A (1, 3, 5) and B (− 2, 3, − 4) are two points, A point P moves such that PA2 − PB2 = 6c, then locus o...