∵2a=3,2b=5,2c=30,且3×5×2=30,
∴2a•2b•2=2a+b+1=2c,
∴c=a+b+1.
若2a=3,2b=5,2c=30,试用a,b表示c.
若2a=3,2b=5,2c=30,试用a,b表示c.
数学人气:120 ℃时间:2019-10-19 03:08:23
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