AAI ATC Junior Executive 25 Mar 2021 Shift 1 Paper

Question : 86 of 120

Marks: +1, -0

If the vertices A,B,C of a triangle ABC are (1, 1, 3), (-1, 0, 0),(0, 1, 2) respectively, then determine ∠ABC. (∠ABC is the angle between the vectors

BA↖{⟶}

and

BC↖{⟶}

)

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