If a line in the XY-plane makes an angle 60o with X-axis. Find the direction cosines of this line. 

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

A line makes an angle 60o with X-axis and 30o with Y-axis, then it will make an angle 90o with Z-axis.

Thus, the direction cosines of this line are.
 

Answered by  | 4th Jun, 2014, 03:23: PM