解數學題 a + loga = 8 ,b + 10^b = 8 ,求 a + b = ?

2018-07-27 3:51 pm

回答 (1)

2018-12-07 2:31 pm
解數學題 a + loga = 8 ,b + 10^b = 8 ,求 a + b = ?
Sol
Set p=loga
10^p=10^loga=a
a+loga=8
10^p+p=8
p=b
a+b
=10^p+b
=10^b+b
=8


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