SOLUTION: When two resistors S and T are connected in parallel their combined resistance R is given by the expression {{{R=1/((1/S)+(1/T))}}} This expression can be rewritten as a rational

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: When two resistors S and T are connected in parallel their combined resistance R is given by the expression {{{R=1/((1/S)+(1/T))}}} This expression can be rewritten as a rational      Log On


   

Question 18859: When two resistors S and T are connected in parallel their combined resistance R is given by the expression R=1%2F%28%281%2FS%29%2B%281%2FT%29%29
This expression can be rewritten as a rational expression in S and T. What is the numerator of that expression is and its denominator?
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
R=1%2F%28%281%2FS%29%2B%281%2FT%29%29=
R=1%2F%28%28T%2BS%29%2FST%29%29
R=ST%2F%28T%2BS%29 ...hence
numerator=ST...and denominator=(T+S)