Why we can select any of the two sets of direction cosines
Nikhil Chenna Reddy , 8 Years ago
Grade 11
Analytical Geometry> Why we can select any of the two sets of ...
1 AnswersVikas TU
Last Activity: 8 Years ago
Direction cosines are actually the cosine of angles taking between the line and the axes.
and the sum of square of the cosines always equals to 1.
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