1.

Given `: vec(A)rarr=2hat(i)-3hat(j)` is The magnitude of `(vec(A)+vec(B))` is `:`A. `sqrt(120)units`B. `sqrt(130)units`C. `sqrt(58)units`D. `sqrt(65)units`

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


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