1.

vecA = 2 hati +3 hatJ +4 hatk and vecB =4 hati +5 hatj +3 hatk , then themagnitudes of vecA -vecB…unit

Answer»

21
8.9
3
12.2

Solution :`VEC(A )- vec(B ) = 2hat(I ) +3HAT(j ) + 4hat(k )- 4hat(j )- 5hat(j )- 3hat(k )`
`|vec( A ) - vec( B ) = sqrt(-2)^(2) + (-2)^(2) + (1)^(2))`
`= sqrt(9)`
`=3`


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