# How do you write the components of vectors?

##### 1 Answer

See explanation that is almost exhaustive. I would review and edit my answer myself, if necessary..

#### Explanation:

For location of a point, use

Let any

is the like-parallel and equal to

Length r = length v.

Now, the unit vector

in the direction

In other words,

any direction can be represented by

unit vector

Note that length of the vector

If r = 1,

Unit vector

Unit vector

gives x-negative x-axis.

Unit vector

Unit vector

It is evident that

is a short form for the sum of the component vectors

Graph of the like-parallel and equal vector

for

#theta = arctan( -4/3 ) .

graph{3y+4x=0[0 8 -4 0]}

The direction is away from O.

.