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

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Question

What are the direction cosines of Z-axis?

Solution

The zaxis makes angles 90°, 90° and 0° with x, y and z axes, respectivelyTherefore, the direction cosines of zaxis are cos 90°, cos 90°, cos 0°, i.e. 0, 0, 1.

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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: 4 | Page no. 24
Solution What Are the Direction Cosines of Z-axis? Concept: Direction Cosines and Direction Ratios of a Line.
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