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What Are the Direction Cosines of X-axis? - CBSE (Arts) Class 12 - Mathematics

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Question

What are the direction cosines of X-axis?

Solution

\[\text { The x - axis makes angles 0°, 90° and 90° with x, y and z axes, respectively } . \]

\[\text{ Therefore, the direction cosines of x - axis are  cos 0°, cos 90° , cos 90° , i . e}  . 1, 0, 0 .\]

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APPEARS IN

 RD Sharma Solution for Mathematics for Class 12 by R D Sharma (Set of 2 Volume) (2018-19 Session) (2018 to Current)
Chapter 27: Direction Cosines and Direction Ratios
Ex.Very Short Answers | Q: 2 | Page no. 24
Solution What Are the Direction Cosines of X-axis? Concept: Direction Cosines and Direction Ratios of a Line.
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