...
use this
1/f = 1/do + 1/di
1/7.1 = 1/do + 1/(-4.9)
1/do = 0.345 cm
do = 2.9 cm
When you get a good response,
please consider giving a best answer.
This is the only reward we get.
You may have to wait an hour to award BA.
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Verified answer
...
use this
1/f = 1/do + 1/di
1/7.1 = 1/do + 1/(-4.9)
1/do = 0.345 cm
do = 2.9 cm
When you get a good response,
please consider giving a best answer.
This is the only reward we get.
You may have to wait an hour to award BA.