Hi everyone, first I'd like to say thanks for looking at my question. :) I need to change the subject of the following equation to R2, I have the answer which I will post underneath, but I'm not quite sure how to do it myself. I have to list the process step by step. R= R1 R2 / R1-R2. Solution: R2 = R R1 / R+R1
2007-04-15 03:14:04 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
R=R1*R2/R1-R2
R(R1-R2)=R1*R2
R*R1-R*R2=R1*R2
R*R1=R1*R2+R*R2
R*R1=R2(R1+R)
R2=R*R1/R1+R
2007-04-15 03:23:56 · answer #1 · answered by ruxacelul 2 · 1⤊ 0⤋
R.(R1 - R2) = R1.R2
R.R1 - R.R2 = R1.R2
R.R1 = R1.R2 + R.R2
R.R1 = R2.(R1 + R)
R2 = R.R1 / (R1 + R)
2007-04-15 11:07:35 · answer #2 · answered by Como 7 · 0⤊ 0⤋
multiply by r+r1
r2(r+r1)=rr1
r2=(rr1)/(r+r1)
2007-04-15 10:20:12 · answer #3 · answered by leo 6 · 0⤊ 1⤋