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 (21.29*7)^2+(24.59*7)^2+(20.56*7)^2+(18.23*7)^2+(27.99*7)^2-17769.19 的值.
题型:数学计算
解:
(21.29*7)^2+(24.59*7)^2+(20.56*7)^2+(18.23*7)^2+(27.99*7)^2-17769.19
=149.03^2+(24.59*7)^2+(20.56*7)^2+(18.23*7)^2+(27.99*7)^2-17769.19
=149.03^2+172.13^2+(20.56*7)^2+(18.23*7)^2+(27.99*7)^2-17769.19
=149.03^2+172.13^2+143.92^2+(18.23*7)^2+(27.99*7)^2-17769.19
=149.03^2+172.13^2+143.92^2+127.61^2+(27.99*7)^2-17769.19
=149.03^2+172.13^2+143.92^2+127.61^2+195.93^2-17769.19
=22209.94090000000142+172.13^2+143.92^2+127.61^2+195.93^2-17769.19
=22209.94090000000142+29628.736899999999878+143.92^2+127.61^2+195.93^2-17769.19
=22209.94090000000142+29628.736899999999878+20712.96639999999752+127.61^2+195.93^2-17769.19
=22209.94090000000142+29628.736899999999878+20712.96639999999752+16284.312099999999191+195.93^2-17769.19
=22209.94090000000142+29628.736899999999878+20712.96639999999752+16284.312099999999191+38388.564900000004855-17769.19
=51838.6778+20712.96639999999752+16284.312099999999191+38388.564900000004855-17769.19
=72551.6442+16284.312099999999191+38388.564900000004855-17769.19
=88835.9563+38388.564900000004855-17769.19
=127224.5212-17769.19
=109455.3312 答案:(21.29*7)^2+(24.59*7)^2+(20.56*7)^2+(18.23*7)^2+(27.99*7)^2-17769.19=109455.3312你的问题在这里没有得到解决?请到 热门难题 里面看看吧!