Jawabanmu

Jawaban paling cerdas!
2014-05-18T21:35:25+07:00
A)
1/f=1/s+1/s'
1/12-1/5=1/s'
s'=-60/7 cm
b)
M=s'/s
M=(60/7)/5
M=12/7 kali
c)
M=h'/h
12/7=h'/3
h'=36/7 cm
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