सूत्र vecaxx(vecbxxvecc)=(veca.vecc)vecb...

सूत्र `vecaxx(vecbxxvecc)=(veca.vecc)vecb-(veca.vecb)vecc` का सत्यापन कीजिए , जबकि `veca=hati+hatj-2hatk,vecb=2hati-hatj+hatk, vecc=hati+3hatj-hatk`

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