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If vec(OP)=2hati+3hatj-hatk and vec(OQ)=...

If `vec(OP)=2hati+3hatj-hatk and vec(OQ)=3hati-4hatj+2hatk` find the modulus and direction cosines of `vec(PQ)`.

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The correct Answer is:
`sqrt(59);(1)/(sqrt(59))hati-(7)/(sqrt(59))hatj+(3)/(sqrt(59))hatk`
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