Question

3cosx-1=2

Answer 1

add 1 to both sides
```
3cosx = 2 + 1
```
now combine like terms
```
3 cos x = 3
```
divide both sides by 3

```
cos x = 1
```
can you solve for x now or do you need more help?

Answer 2

x=npi , where n=1,2,.....

Answer 3

i got up to that part(cosx=1), what do i do after that?

Answer 4

take the arc cosine of both sides

Answer 5

how do i do that?

Answer 6

http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg

Answer 7

basically find where cos = 1, and thats at 0 degrees

Answer 8

thanks