SOLUTION: I cant get this for nothing 1/r = 1/R1 + 1/R2 :solve for R1 the R1 and R2 are subscripts

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Question 321568: I cant get this for nothing
1/r = 1/R1 + 1/R2 :solve for R1

the R1 and R2 are subscripts

Found 2 solutions by Fombitz, mananth:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!

Multiply both sides by




Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
1/r = 1/R1 + 1/R2 :
..
1/r-1/R2= 1/R1
..
R2-r/rR2 =1/R1
..
R1= rR2 /R2-r

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