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☆算术计算1题
〖1/1算式〗
作业:求算式 2/3*14.3*400^3*(sin(0.289*180))^3+360*7000*400*(sin(0.289*180)+sin(0.672*180))/π 的值.
题型:数学计算
解:
2/3*14.3*400^3*(sin(0.289*180))^3+360*7000*400*(sin(0.289*180)+sin(0.672*180))/π
=2/3*14.3*400^3*(sin52.02)^3+360*7000*400*(sin(0.289*180)+sin(0.672*180))/π
=2/3*14.3*400^3*0.983171^3+360*7000*400*(sin(0.289*180)+sin(0.672*180))/π
=2/3*14.3*400^3*0.983171^3+360*7000*400*(sin52.02+sin(0.672*180))/π
=2/3*14.3*400^3*0.983171^3+360*7000*400*(sin52.02+sin120.96)/π
=2/3*14.3*400^3*0.983171^3+360*7000*400*1.983133/π
=2/3*14.3*64000000*0.983171^3+360*7000*400*1.983133/π
=2/3*14.3*64000000*0.950357879493709+360*7000*400*1.983133/π
=0.666667*14.3*64000000*0.950357879493709+360*7000*400*1.983133/π
=9.533338*64000000*0.950357879493709+360*7000*400*1.983133/π
=610133632*0.950357879493709+360*7000*400*1.983133/π
=579845304.715315+360*7000*400*1.983133/π
=579845304.715315+2520000*400*1.983133/π
=579845304.715315+1008000000*1.983133/π
=579845304.715315+1998998064/π
=579845304.715315+636300846.233458
=1216146150.948773 答案:2/3*14.3*400^3*(sin(0.289*180))^3+360*7000*400*(sin(0.289*180)+sin(0.672*180))/π=1216146150.948773 注:弧度制你的问题在这里没有得到解决?请到 热门难题 里面看看吧!