- #1
talknerdy2me
- 5
- 1
This is my very first post - so i hope I don't break any rules - its more of a formula rearranging question/confirmation so here goes...
Currently working on friction - static/kinetic - so in my textbook it states in a side bar "info bit" that
tanθ=sinθ/cosθ my question is : can this equation be rearranged - see below...
so if tanθ=sinθ/cosθ then does sinθ=(tanθ)(cosθ) and does cosθ=sinθ/tanθ
I haven't come across any questions so far where i would need to use sinθ=(tanθ)(cosθ) and cosθ=sinθ/tanθ - more or less a general question of would I encounter having to use the sinθ=(tanθ)(cosθ) and cosθ=sinθ/tanθ rather than tanθ=sinθ/cosθ - numerically it works, but are these variations used?
Hope this wasn't clear as mud... If i can provide any more info - let me know!
![Bug Eye :bugeye: :bugeye:](https://www.physicsforums.com/styles/physicsforums/xenforo/smilies/oldschool/bugeye.gif)
Homework Statement
Currently working on friction - static/kinetic - so in my textbook it states in a side bar "info bit" that
tanθ=sinθ/cosθ my question is : can this equation be rearranged - see below...
Homework Equations
so if tanθ=sinθ/cosθ then does sinθ=(tanθ)(cosθ) and does cosθ=sinθ/tanθ
The Attempt at a Solution
I haven't come across any questions so far where i would need to use sinθ=(tanθ)(cosθ) and cosθ=sinθ/tanθ - more or less a general question of would I encounter having to use the sinθ=(tanθ)(cosθ) and cosθ=sinθ/tanθ rather than tanθ=sinθ/cosθ - numerically it works, but are these variations used?
Hope this wasn't clear as mud... If i can provide any more info - let me know!
![Bug Eye :bugeye: :bugeye:](https://www.physicsforums.com/styles/physicsforums/xenforo/smilies/oldschool/bugeye.gif)