If A= 3i - 4j and B= - I - 4j, calculate vec(A) + vec(B) and |vec(A) + vec(B)|

If A= 3i - 4j and B= - I - 4j, calculate vec(A) + vec(B) and |vec(A) +

1.	If A= 3i - 4j and B= - I - 4j, calculate vec(A) + vec(B) and \|vec(A) + vec(B)\|
Answer» `TAN^(-1) (4)` with + x- AXIS in clock WISE `tan^(-1) (4)` with -x- axis in clock wise `tan^(-1)(4)` with +x - axis in anticlock wise `tan^(-1) (4)` with -x- axis in anticlock wise Answer :A