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# Solution for What Are the Direction Cosines of X-axis? - CBSE (Commerce) Class 12 - Mathematics

ConceptDirection Cosines and Direction Ratios of a Line

#### 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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Solution What Are the Direction Cosines of X-axis? Concept: Direction Cosines and Direction Ratios of a Line.
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