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If vecA, vecB and vecC are three non - c...

If `vecA, vecB and vecC` are three non - coplanar vectors, then `(vecA.vecBxxvecC)/(vecCxxvecA.vecB)+(vecB.vecAxxvecC)/(vecC.vecA xx vecB)`=_________

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`(vecA.vecB xx vecC)/(vecCxxvecA.vecB)+(vecB.vecAxxvecC)/(vecC.vecAxxvecB)`
`([vecA vecBvecC])/([vecA vecBvecC])+ (-[vecAvecBvecC])/([vecA vecB vecC])=0`
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