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If `vec(AB) = (2hati + hatj - 3hatk)` and `A(1,2,-1)` is the given point, find the coordinates of B.

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If `vec(AB) = (2hati + hatj - 3hatk)` and `A(1,2,-1)` is the given point, find the coordinates of B.
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Correct Answer - `(3,3,-4)`
Let O be the origin. Then, `vec(OA) = (hati + 2hatj - hatk)`.
`:. vec(AB) = (vec(OB) - vec(OA)) rArr vec(OB) = (vec(AB) + vec(OA))`.
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