SOLUTION: Solve for R: 1/R = 1/A + 1/B I thought I had this worked out, but was not sure I could do what I did. I multipled both sides of the equation by 1/1 which allowed me to end u

Question 43382: Solve for R:
1/R = 1/A + 1/B
I thought I had this worked out, but was not sure I could do what I did. I multipled both sides of the equation by 1/1 which allowed me to end up with R = A + B. Can this be correct? What did I do wrong?
John
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!

or
or

So you are wrong!

You must note that and are not the same. Here you committed the mistake.
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