SOLUTION: How do you simplify this formula? RT =1/ 1/R1 + 1/R2 How do I even begin with this problem? Thank you in advance for your help.

Algebra ->  Equations -> SOLUTION: How do you simplify this formula? RT =1/ 1/R1 + 1/R2 How do I even begin with this problem? Thank you in advance for your help.      Log On


   

Question 68815: How do you simplify this formula?
RT =1/
1/R1 + 1/R2
How do I even begin with this problem? Thank you in advance for your help.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
simplify this formula?
RT =1/(1/R1 + 1/R2)----

Simplify the denominator:
1/R1 + 1/R2 = (R1+R2)/R1R2
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Now take the inverse of the denominator to get:
RT= (R1R2)/(R1 + R2)
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Cheers,
stan H.