jawab yh 10 sama 11/12
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jawab yh 10 sama 11/12
1 Jawaban
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1. Jawaban agusrihartonohartono
1/f = 1/s' + 1/So
1/f = 1/60 + 1/20
1/f = 1/60 + 3/60
1/f = 4/60 .............60/4 = 15
F = 15 cm
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