ab:bc:ac=10:12:15
另ab=10x bc=12x ac=15
則ab:bc=10:12 a:c=5:6
同理可得bc:ac=12:15 b:a=4:5
則連比可得a:b:c=5:4:6
若ab:bc:ac=10:12:15,則a:b:c=?
若ab:bc:ac=10:12:15,則a:b:c=?
數(shù)學(xué)人氣:203 ℃時間:2020-06-04 17:06:36
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