Question

Find the sum of vector A and B
A=2i +2j
B=2i - 4j

Answer 1

$$\bold{A+B}=(2\bold{i}+2\bold{j})+(2\bold{i}-4\bold{j})$$

$$\bold{A+B}=(2+2)\bold{i}+(2-4)\bold{j}$$

$$\bold{A+B}=4\bold{i}-2\bold{j}$$