solve('6600*(exp((-0.1155)*x)-exp((-0.1386)*x))=200','x')

ans =

[ 33.242273582919781044404221544008+110.39820712376981372639082521324*i]

[ 33.242273582919781044404221544008-110.39820712376981372639082521324*i]

[ 30.417499329414390730090293198279+58.693678312326391933412403634227*i]

[ 30.417499329414390730090293198279-58.693678312326391933412403634227*i]

[ 22.435077863592306008843810565972]

[ 1.6093400115869796827381043168861]

.

solve('6600*(exp((-0.1155)*x)-exp((-0.1386)*x))-200','x')

ans =

[ 33.242273582919781044404221544008+110.39820712376981372639082521324*i]

[ 33.242273582919781044404221544008-110.39820712376981372639082521324*i]

[ 30.417499329414390730090293198279+58.693678312326391933412403634227*i]

[ 30.417499329414390730090293198279-58.693678312326391933412403634227*i]

[ 22.435077863592306008843810565972]

[ 1.6093400115869796827381043168861]

追问：

咱俩写的基本一样啊。。。为什么我的出不来

作业帮用户

2017-09-27

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