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Find a vector perpendicular to vector `vecA=(hati+2hatj-3hatk)` as well as `vecB=(hati+hatj-hatk)` |
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Answer» `vecC=vecAxxvecB=|{:(hati,hatj,hatk),(1,2,-3),(1,1,-1):}|=hati(-2+3)+hatj(-3+1)+hatk(1-2)` `=hati-2hatj-hatk` Hint. `vecC=vecAxxvecB` |
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