Question

सदिश ` vec a " तथा" vec b ` का सदिश गुणन ज्ञात कीजिए , जबकि
` vec a = 3 hati - hatj + 2hatk , hatb = hati + hatj - 4hatk `

Answer 1

`veca xx vecb |{:(hati , hatj , hatk ),(3, -1, 2),(1, 1,-4):}|`
` hati [ 4 - 2 ] - hatj [ 3 (-4 ) - 2] + hatk [ 3 - (-1) ] `
` 2 hati + 14 hatj + 4hatk ` .