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CBSE Class 12-science Answered



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 | 04 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 | 04 Jun, 2014, 03:23: PM
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