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Trying to solve for R

  • Thread starter zgozvrm
  • Start date
  • #1
754
1

Homework Statement



This is not homework; I'm working on a problem of my own...


I can't seem to remember how to solve equations like this (I'm trying to solve for R):

[tex]R - \sqrt{R^2 - X^2} \le B - \sqrt{B^2 - \left( \frac{BX}{A} \right) ^2}[/tex]

Homework Equations



My initial thought was to square both sides, but I don't see how that would help.

The Attempt at a Solution



I don't really know where to start.
 

Answers and Replies

  • #2
arildno
Science Advisor
Homework Helper
Gold Member
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You need to get rid of the square root expression containing R^2.
Move your single R over to the other side, and THEN square both sides.

You'll need to be careful when specifying the domain of solutions.
 
  • #3
754
1
Yeah, thanks. I just drew a blank for some reason!
 

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