## anonymous one year ago I need to isolate r3 R= _______1_________ 1/r1+ 1/r2 +1/r3 Please help and respond as fast as you can. This is due tomorrow.

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1. phi

start by flipping both sides

2. anonymous

$\frac{ 1 }{ R }=\frac{ 1 }{ r _{1} }+\frac{ 1 }{ r _{2} }+\frac{ 1 }{ r _{3} }$ $\frac{ 1 }{ r _{3} }=\frac{ 1 }{R }-\frac{ 1 }{ r _{1} }-\frac{ 1 }{r _{2} }$

3. anonymous

Phi, By flipping did you mean to multiply both sides by reciprocal?

4. anonymous

Thank you! It seems much simpler to me now

5. anonymous

yw