3 public questions tagged with this topic.
The trick is using formula we get 1 3 ; i + 1 3 ; j + 1 3 ; k. Calculation gives this directly, check steps: apply rule, substitute values, simplify to get 1 3 ; i + 1
Ref: NCERT Mathematics Class XII — Vectors and 3D Geometry
Let's break it down: after simplifying, ± 3 is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XII — Vectors and 3D Geometry
In easy words, after simplifying, -2i13+3j13 is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XII — Vectors and 3D Geometry
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