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作业:求算式 e^(-0.25^1/2)+e^(-0.25^1/2)*(-1/2)*0.25^(-1/2)*ln0.25 的值.
题型:数学计算
解:
e^(-0.25^1/2)+e^(-0.25^1/2)*(-1/2)*0.25^(-1/2)*ln0.25
=e^(-0.125)+e^(-0.25^1/2)*(-1/2)*0.25^(-1/2)*ln0.25
=e^-0.125+e^(-0.125)*(-1/2)*0.25^(-1/2)*ln0.25
=e^-0.125+e^-0.125*(-0.5)*0.25^(-1/2)*ln0.25
=e^-0.125+e^-0.125*(-0.5)*0.25^(-0.5)*ln0.25
=2.718282^-0.125+e^-0.125*-0.5*0.25^-0.5*ln0.25
=2.718282^-0.125+2.718282^-0.125*-0.5*0.25^-0.5*ln0.25
=2.718282^-0.125+2.718282^-0.125*-0.5*0.25^-0.5*-1.386294
=0.882496895623196+2.718282^(-0.125)*(-0.5)*0.25^(-0.5)*(-1.386294)
=0.882496895623196+0.882496895623196*(-0.5)*0.25^(-0.5)*(-1.386294)
=0.882496895623196+0.882496895623196*(-0.5)*2*(-1.386294)
=0.882496895623196+(-0.441248)*2*(-1.386294)
=0.882496895623196+(-0.882496)*(-1.386294)
=0.882496895623196+1.223399
=2.105896 答案:e^(-0.25^1/2)+e^(-0.25^1/2)*(-1/2)*0.25^(-1/2)*ln0.25=2.105896你的问题在这里没有得到解决?请到 热门难题 里面看看吧!