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 (1.2^1)+(1.2^2)+(1.2^3)+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7) 的值.
题型:数学计算
解:
(1.2^1)+(1.2^2)+(1.2^3)+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7)
=1.2+(1.2^2)+(1.2^3)+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7)
=1.2+1.44+(1.2^3)+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7)
=1.2+1.44+1.728+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7)
=1.2+1.44+1.728+2.0736+(1.2^5)+(1.2^6)+(1.2^7)
=1.2+1.44+1.728+2.0736+2.488319999999999+(1.2^6)+(1.2^7)
=1.2+1.44+1.728+2.0736+2.488319999999999+2.985983999999999+(1.2^7)
=1.2+1.44+1.728+2.0736+2.488319999999999+2.985983999999999+3.583180799999999
=2.64+1.728+2.0736+2.488319999999999+2.985983999999999+3.583180799999999
=4.368+2.0736+2.488319999999999+2.985983999999999+3.583180799999999
=6.4416+2.488319999999999+2.985983999999999+3.583180799999999
=8.92992+2.985983999999999+3.583180799999999
=11.915904+3.583180799999999
=15.499085 答案:(1.2^1)+(1.2^2)+(1.2^3)+(1.2^4)+(1.2^5)+(1.2^6)+(1.2^7)=15.499085你的问题在这里没有得到解决?请到 热门难题 里面看看吧!