dengan caranya !!
tolong djawab ya
tolong djawab ya
jarak bayangan
[tex] \frac{1}{si } = \frac{1}{20} - \frac{1}{30} \\ \frac{1}{si} = \frac{3 - 2}{60} \\ \frac{1}{si} = \frac{1}{60} \\ si = 60[/tex]
perbesaran
[tex] \frac{60}{30} = 2[/tex]
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