CBSE Class 12-science Answered
If a line makes angles 
with OX, OY and OZ respectively. Prove that 
.
with OX, OY and OZ respectively. Prove that .
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Let 
be the direction cosines of the given line. Then
.
Answered by | 04 Jun, 2014, 03:23: PM
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