SOLUTION: R=1/r1+1/r2+1/r3 i need r2

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Question 993120: R=1/r1+1/r2+1/r3 i need r2
Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.
Read what you submitted.

It is not sufficient info to solve the problem.


Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
R=1/r1+1/r2+1/r3 i need r2
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1/r2 = R - (1/r1) - (1/r3)
r2+=+1%2F%28R+-+%281%2Fr1%29+-+%281%2Fr3%29%29
r2+=+1%2F%28R+-+%28r1+%2B+r3%29%2F%28r1%2Ar3%29%29
r2+=+1%2F%28%28R%2Ar1%2Ar3+-+r1+-+r3%29%2F%28r1%2Ar3%29%29
r2+=+r1%2Ar3%2F%28R%2Ar1%2Ar3+-+r1+-+r3%29