Step 1 Then we have: 1r=1r1+1r2 giving: 1r=r2+r1r1r2 To find r invert the whole equation giving: r=r1r2r1+r2

Expert Answer to "Determine: 1r=r1+r2?"

Ben Mcdonald

Answered question

2022-02-04

Determine:

\frac{1}{r} = r_{1} + r_{2} ?

Marina Tate

Beginner2022-02-05Added 10 answers

Step 1
Then we have:

\frac{1}{r} = \frac{1}{r_{1}} + \frac{1}{r_{2}}

giving:

\frac{1}{r} = \frac{r_{2} + r_{1}}{r_{1} r_{2}}

To find r invert the whole equation giving:

r = \frac{r_{1} r_{2}}{r_{1} + r_{2}}

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