The angle between the lines passing through the points (4, 7, 8), (2, 3, 4) and (-1, -2, 1), (1, 2, 5) is
A. 0
B. \(\frac{\pi}{2}\)
C. \(\frac{\pi}{4}\)
D. \(\frac{\pi}{6}\)
Answer:A
The angle between the lines passing through the points (4, 7, 8), (2, 3, 4) and (-1, -2, 1), (1, 2, 5) is
A. 0 B. \(\frac{\pi}{2}\) C. \(\frac{\pi}{4}\) D. \(\frac{\pi}{6}\)