Maths: Logarithm?

2018-12-27 10:31 pm
How to do, thanks

回答 (1)

2018-12-28 6:47 am
✔ 最佳答案
Sol
10^p=2
P=log2
10^q=7
Q=log7
280=10*28=10*(2^2)*7
Log280=log[10*(2^2)*7]=log10+2log2+log7=1+2p+q


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