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 (2/3)^2*0.08^2+(1/3)^2*0.05^2+2*(2/3)*(1/3)*0.4*0.08*0.05 的值.
题型:数学计算
解:
(2/3)^2*0.08^2+(1/3)^2*0.05^2+2*(2/3)*(1/3)*0.4*0.08*0.05
=0.666667^2*0.08^2+(1/3)^2*0.05^2+2*(2/3)*(1/3)*0.4*0.08*0.05
=0.666667^2*0.08^2+0.333333^2*0.05^2+2*(2/3)*(1/3)*0.4*0.08*0.05
=0.666667^2*0.08^2+0.333333^2*0.05^2+2*0.666667*(1/3)*0.4*0.08*0.05
=0.666667^2*0.08^2+0.333333^2*0.05^2+2*0.666667*0.333333*0.4*0.08*0.05
=0.444444888889*0.08^2+0.333333^2*0.05^2+2*0.666667*0.333333*0.4*0.08*0.05
=0.444444888889*0.0064+0.333333^2*0.05^2+2*0.666667*0.333333*0.4*0.08*0.05
=0.444444888889*0.0064+0.111110888889*0.05^2+2*0.666667*0.333333*0.4*0.08*0.05
=0.444444888889*0.0064+0.111110888889*0.0025+2*0.666667*0.333333*0.4*0.08*0.05
=0.002844+0.111110888889*0.0025+2*0.666667*0.333333*0.4*0.08*0.05
=0.002844+0.000278+2*0.666667*0.333333*0.4*0.08*0.05
=0.002844+0.000278+1.333334*0.333333*0.4*0.08*0.05
=0.002844+0.000278+0.444444*0.4*0.08*0.05
=0.002844+0.000278+0.177778*0.08*0.05
=0.002844+0.000278+0.014222*0.05
=0.002844+0.000278+0.000711
=0.003122+0.000711
=0.003833 答案:(2/3)^2*0.08^2+(1/3)^2*0.05^2+2*(2/3)*(1/3)*0.4*0.08*0.05=0.003833你的问题在这里没有得到解决?请到 热门难题 里面看看吧!