explain about directional cosines and directional ratios
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Direction cosines are cosine of angles made by a vector in R3, with x, y and z axes. Direction ratios are proportional to direction ratios. You can think direction ratios as analogue to slope in R2.
Step-by-step explanation:
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1
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Direction cosines are the cosines of the angle which a vector makes with +ve direction of co-ordinate axis
Direction ratios are multiple of direction cosines.
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