- #1

- 11

- 0

* in terms of centimeters. Do not include units in your answer. They will be assumed to be cm.

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I'm not really sure how to approach this problem. I keep calculating it and getting the wrong answer. I started with the 1/f =1/do + 1/di equation, and know that M = -di/do, but from there my work is probably wrong

-2=-di/do : -2do = -di ----> 2do=di

1/f=1/do + 1/2do

1/f =1/3do

f= 3do

1/3f=do

1/3 * 33.7cm =do

do= 11.23cm =WRONG.

?????