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 -2500-2000/(1+0.2)+1200×((1+0.2)^9-1)÷0.2÷(1+0.2)^9÷(1+0.2) 的值.
题型:数学计算
解:
-2500-2000/(1+0.2)+1200×((1+0.2)^9-1)÷0.2÷(1+0.2)^9÷(1+0.2)
=-2500-2000/1.2+1200×((1+0.2)^9-1)÷0.2÷(1+0.2)^9÷(1+0.2)
=-2500-2000/1.2+1200×(1.2^9-1)÷0.2÷(1+0.2)^9÷(1+0.2)
=-2500-2000/1.2+1200×4.15978÷0.2÷(1+0.2)^9÷(1+0.2)
=-2500-2000/1.2+1200×4.15978÷0.2÷1.2^9÷(1+0.2)
=-2500-2000/1.2+1200×4.15978÷0.2÷1.2^9÷1.2
=-2500-2000/1.2+1200×4.15978÷0.2÷5.159780351999999÷1.2
=-2500-1666.666667+1200×4.15978÷0.2÷5.159780351999999÷1.2
=-2500-1666.666667+4991.736÷0.2÷5.159780351999999÷1.2
=-2500-1666.666667+24958.68÷5.159780351999999÷1.2
=-2500-1666.666667+4837.159394÷1.2
=-2500-1666.666667+4030.966162
=-4166.666667+4030.966162
=-135.700505 答案:-2500-2000/(1+0.2)+1200×((1+0.2)^9-1)÷0.2÷(1+0.2)^9÷(1+0.2)=-135.700505你的问题在这里没有得到解决?请到 热门难题 里面看看吧!