Q3 of 29 Page 1

Find the direction cosines of a line passing through two points (-2, 4, -5) and (1, 2, 3).

Direction ratios of line passing through (-2, 4, -5) and (1, 2, 3) is


⇒ (-2 - 1) : (4 - 2) : (-5 - 3)


⇒ -3 : 2 : -8


⇒ 3 : -2 : 8


So, direction cosines are:




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