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If `vecA= 3hati+2hatj and vecB= 2hati+ 3hatj-hatk`, then find a unit vector along `(vecA-vecB)`.

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If `vecA= 3hati+2hatj and vecB= 2hati+ 3hatj-hatk`, then find a unit vector along `(vecA-vecB)`.
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Correct Answer - `(hati-hatj+hatk)/(sqrt3) `
Unit vector along `(vecA- vecB) = (vecA-vecB)/(|vecA- vecB|) `
`" "=((3hati+2hatj)-(2hati+3hatj-hatk))/(|(3hati+2hatj)-(2hati+3hatj-hatk)|) = (hati-hatj+hatk)/(sqrt3)`
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