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## Homework Statement

A = 2i + 3j

B = -5i + 6j

Calculate (draw vector diagram)

A + B

A - B

## Homework Equations

actually we're just confused as to whether we need to use the angles to answer this or just answer it directly, meaning that for A + B the answer would be -3i + 9j

## The Attempt at a Solution

do we use

A + B = -3i + 9j

or solve for the angles(*rounded off) and use

A+B = ((√13)cos56 + (√61)cos50)i + ((√13)sin56 + (√61)sin50)j

????????