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= 1/ 60 + 1/15
= 1/60 + 4/60
= 5/60
si/1 = 60/5
= 12 cm
2 . m = | si/so |
= | 12 / 60|
= 0,2 kali
3. m = hi/ho
0,2 = hi / 4
hi = 0,2 × 4
= 0,8 cm
maaf segitu doang yg ane tau
semoga bermanfaat ya
s: 60 cm
f; 15 cm
a. 1/s+1/s'=1/f = 1/60:1/15
= 1-2/4=1/s'
= -1/4 = 1/s'
s'=4