Introduction to 3DHard
Question
The angle between the lines whose direction ratios are 3, 4, 5 and 4, −3, 5 is −
Options
A.30o
B.45o
C.60o
D.90o
More Introduction to 3D Questions
The distance between the line and the plane 2x + 2y − z = 6 is -...A line passes through the points (6, − 7, − 1) and (2, − 3, 1). The direction cosines of the line so d...The co-ordinates of points A, B, C, D are (a, 2, 1), (1, −1, 1), (2, −3, 4) and (a + 1, a + 2, a + 3) respec...Which of the following triplets gives direction cosines of a line ?...If the plane x + y + z = 1 is rotated through 90o about its line of intersection with the plane x − 2y + 3z = 0, t...