# 4.3.2 Subtraction of Vectors

4.3.2 Subtraction of Vectors
The subtraction of the vector $\underset{˜}{b}$ from the vector $\underset{˜}{a}$ is written as $\underset{˜}{a}-\underset{˜}{b}$ . This operation can be considered as the addition of the vector $\underset{˜}{a}$ with the negative vector of . Therefore $\underset{˜}{a}-\underset{˜}{b}=\underset{˜}{a}+\left(-\underset{˜}{b}\right).$

Example 1:

In the diagram above, vector and Q divides PR in the ratio of 2: 3. Find the following vectors in terms of

Solution:
(a)

(b)

(c)