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1/R = 1/A + 1/B assuming that all denominators are non-zero solve for B
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1/R = 1/A + 1/B assuming that all denominators are non-zero solve for B

User Olevegard
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1 Answer

5 votes

Answer:

1/B = 1/R - 1/A

B/R - B/A = 1

B - BR/A = 1

B = 1 + BR/A

User Rapptz
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