Asked by samuel
isolate for f
1/di = 1/f - 1/do
show all the steps pls
1/di = 1/f - 1/do
show all the steps pls
Answers
Answered by
Henry
1/f = 1/di + 1/do
LCD = di*do
1/f = do/di*do + di/di*do
1/f = (do+di)/di*do
Invert both sides:
f = di*do/(do+di)
LCD = di*do
1/f = do/di*do + di/di*do
1/f = (do+di)/di*do
Invert both sides:
f = di*do/(do+di)
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