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If vecA=4hati-5vecj+6veck and vecB=3hati...

If `vecA=4hati-5vecj+6veck and vecB=3hati+6hatj-7hatk,` find `vecAxxvecB` ?

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`{:(vecA=4hati-5hatj+6hatk),(vecB=3hati+6hatj-7hatk):}impliesvecAxxvecB=|(hati,hatj,hatk),(4,-5,6),(3,6,-7)|=hati(35-36)+hatj(18+28)+hatk(24+15)=-hati+46hatj+39hatk`
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