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in Vector Algebra – I by (49.1k points)
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Two vertices of a triangle have position vectors 3i + 4j - 4k and 2i + 3j + 4k. If the position vector of the centroid is i + 2j + 3k, then the position vector of the third vertex is …

(a) -2i - j + 9k

(b) -2i - j - 6k

(c) 2i - j + 6k

(d) -2i + j + 6k

1 Answer

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Best answer

Answer is (a) -2i - j + 9k

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