vecAB = 3hati - hatj + hatk and vec(CD) = 3hati + 2hatj + 4hatk are two vectors. The position vectors of the points

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Q 1840634513.     vecAB = 3hati - hatj + hatk and vec(CD) = 3hati + 2hatj + 4hatk are two vectors. The position vectors of the points A and C are 6hati + 7hatj + 4hatk and -9hati + 2hatk, respectively. Find the position vector of a point P on the line AB and a point O on the line CD such that vec(PQ) is perpendicular to vec(AB) and vec(CD) both.

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