Jawabanmu

2014-01-31T21:25:31+07:00
Diketahui :
f = 15
s = 20

a.  \frac{1}{f} =  \frac{1}{s} + \frac{1}{s₁}
 \frac{1}{15} = \frac{1}{20} + \frac{1}{s₁} 
 \frac{1}{s₁} =  \frac{1}{15} - \frac{1}{20} 
 \frac{1}{s₁} = \frac{4-3}{60}
s₁ = 60

b. |M| =  \frac{\frac{60}{20}
|M| = 3

c. Sifat Bayangan:
maya, tegak, diperbesar


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