# What is the dot product of #<8,-1,4># and #<9,1,5 >#?

##### 1 Answer

Dec 28, 2015

#### Answer:

#### Explanation:

For any 2 vectors

So in this particular case of 3-dimesnional vectors we get

(Note that we can also represent the inner product as the angle between the 2 vectors and the norms of the 2 vectors as follows :