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semoga bermanfaat
s'= - 40
dit : p=....?
jawab:
1 = 1 + 1 = 1 - 1 = 0 - 1 = - 1
f s s' 0 40 40 40
f = - 40 cm = - 0,40 m atau 0,40 dioptri
P= 1 = - 1 dioptri
f 0,4
jawabannya b. 0,40 dioptri
maaf kalo salah
semoga membantu :)