Consider the two vectors a(with arrow above)=5i-3j and b(with arrow above)=-i-2j

1. calculate a (with arrow above) + b (with arrow above)
2. calculate a (with arrow above) - b (with arrow above)
3. calculate absolute value of a (with arrow above) + b (with arrow above)
4. calculate absolute value of a (with arrow above) - b (with arrow above)
5. calculate the directions of a (with arrow above) + b (with arrow above) and a (with arrow above) - b (with arrow above).
(answers are counterclockwise from the +xaxis)