Question
A line makes angles and with positive directions of x-axis, y-axis and z-axis respectively. What are the direction cosines of the line?
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Text solutionVerified
If and are the angles made by the line segment with the coordinate axis.
and are called as the direction cosines and are usually denoted by and
and
Direction cosines of the line are
i.e.
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Question Text | A line makes angles and with positive directions of x-axis, y-axis and z-axis respectively. What are the direction cosines of the line? |
Answer Type | Text solution:1 |
Upvotes | 150 |