Question

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

Answer 1

Given:

${\bf A}=2{\bf i}+2{\bf j};$

${\bf C}=2{\bf i}-4{\bf j}.$

The sum of vectors

$${\bf A}+{\bf C}=2{\bf i}+2{\bf j}+2{\bf i}-4{\bf j}=4{\bf i}-2{\bf j}.$$