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)
isolate for f
1/di = 1/f - 1/do
show all the steps pls
1 answer
1/di = 1/f - 1/do
show all the steps pls
1 answer