SOLUTION: simplify the complex fraction : Rt=1/((1/R1)+(1/R2)+(1/R3)) in R1, R2, and R3 1,2, and 3 are subscripts

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Question 37068This question is from textbook algebra 2
: simplify the complex fraction : Rt=1/((1/R1)+(1/R2)+(1/R3))
in R1, R2, and R3 1,2, and 3 are subscripts
This question is from textbook algebra 2

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Yes, this one relates three resistance in an electrical circuit...
Rt=1/((1/R1)+(1/R2)+(1/R3))
Just working on the right side, combine the denominators and invert (because of the one over above all of them) and get
R-sub-t = [(R-sub-1)(R-sub-2)(R-sub-3)] / [(R-sub-2)(R-sub-3) + (R-sub-1)(R-sub-3) + (R-sub-2)(R-sub-3)]