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1/si =1/f - 1/so
= 1/15 - 1/10
= 2/30 - 3/30
= -1/30
si= -30 cm
sifat= diperbesar, maya,
pembesaran
m= si/so
= -30/10
= -3 cm
maaf klo sala
so = 10 cm
si?
1/so + 1/si = 1/f
1/10 +1/si =1/15
1/si = 1/15 - 1/10
1/si = 1/-30
si = -30
perbesaran?
M= si/so
= -30/10
= -3
sifat bayangan?
diperbesar,maya