m=ln3
n=ln2
2m+2n=2ln3+2ln2=ln8+ln4=ln32
e ln32=32
我以前做过一到这样的类似的题目：已知e^m=3,In2=n,求e^2m+3n
m=ln3
n=ln2
2m+3n=2ln3+3ln2=ln8+ln9=ln72
e ln72=72
答案是72,会不会是你写错数了?!
已知e^m=3,In2=n,求e^2m+2n的值
已知e^m=3,In2=n,求e^2m+2n的值
怎么来的？
怎么来的？
数学人气：643 ℃时间：2020-04-28 08:51:46
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