Find the direction cosines of the line segment joining the points `P(2

1.	Find the direction cosines of the line segment joining the points `P(2,3 -6)` and `Q(3, -4, 5)`
Answer» `PQ=(3-2,-4-3,5-(-6))` DR of PQ=(1,-7,11) distance` PQ=sqrt(1^2+(-7)^2+11^2)` `PQ=sqrt171` `PQ=3sqrt19` Distance of PQ`(1/(3sqrt19),(-7)/(3sqrt19),11/(3sqrt19))`.

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Find the direction cosines of the line segment joining the points `P(2,3 -6)` and `Q(3, -4, 5)`

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