# How do you use the definition of the scalar product, find the angles between the following pairs of vectors: 2i - 3 j k and - 2i - j - k?

##### 1 Answer

Aug 1, 2016

#### Explanation:

we use the definition of the scalar dot product, namely

**doing the LHS first** [check the typo in the question, BTW]

**next the RHS**

comparing