总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 e^(-1.38%*1)+e^(-1.54%*2)+e^(-1.55%*3)+e^(-1.80%*4) 的值.
题型:数学计算
解:
e^(-1.38%*1)+e^(-1.54%*2)+e^(-1.55%*3)+e^(-1.80%*4)
=e^(-0.0138)+e^(-1.54%*2)+e^(-1.55%*3)+e^(-1.80%*4)
=e^-0.0138+e^(-0.0308)+e^(-1.55%*3)+e^(-1.80%*4)
=e^-0.0138+e^-0.0308+e^(-0.0465)+e^(-1.80%*4)
=e^-0.0138+e^-0.0308+e^-0.0465+e^(-0.072)
=2.718282^-0.0138+e^-0.0308+e^-0.0465+e^-0.072
=2.718282^-0.0138+2.718282^-0.0308+e^-0.0465+e^-0.072
=2.718282^-0.0138+2.718282^-0.0308+2.718282^-0.0465+e^-0.072
=2.718282^-0.0138+2.718282^-0.0308+2.718282^-0.0465+2.718282^-0.072
=0.986294782636048+2.718282^(-0.0308)+2.718282^(-0.0465)+2.718282^(-0.072)
=0.986294782636048+0.969669485696721+2.718282^(-0.0465)+2.718282^(-0.072)
=0.986294782636048+0.969669485696721+0.954564557768851+2.718282^(-0.072)
=0.986294782636048+0.969669485696721+0.954564557768851+0.93053089158319
=1.955964+0.954564557768851+0.93053089158319
=2.910529+0.93053089158319
=3.84106 答案:e^(-1.38%*1)+e^(-1.54%*2)+e^(-1.55%*3)+e^(-1.80%*4)=3.84106你的问题在这里没有得到解决?请到 热门难题 里面看看吧!