यदि vecA + vecB = 2hati + 6hatj + hatk त...

यदि `vecA + vecB = 2hati + 6hatj + hatk` तथा `vecA - vecB = 4hati + 2hatj - 11 hatk` हों, तो सदिशों `|vecA|` व `|vecB|` के मान तथा उनका अदिश गुणन `vecA * vecB` ज्ञात कीजिए

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