1.

Given : vec(A)rarr=2hat(i)-3hat(j) is The magnitudeof (vec(A)+vec(B)) is :

Answer»

`SQRT(120)UNITS`
`sqrt(130)units`
`sqrt(58)units`
`sqrt(65)units`

SOLUTION :`(vec(A)+vec(B))=7hat(i)-9hat(j)`
`:. |vec(A)+vec(B)|=sqrt(49+81)=sqrt(130)`


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