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## Homework Statement

Currently working on friction - static/kinetic - so in my text book 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!