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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(0.293*180))^3+360*7500*400*(sin(0.293*180)+sin(0.664*180))/π 的值.
题型:数学计算
解:
2/3*14.3*400^3*(sin(0.293*180))^3+360*7500*400*(sin(0.293*180)+sin(0.664*180))/π
=2/3*14.3*400^3*(sin52.74)^3+360*7500*400*(sin(0.293*180)+sin(0.664*180))/π
=2/3*14.3*400^3*0.618691^3+360*7500*400*(sin(0.293*180)+sin(0.664*180))/π
=2/3*14.3*400^3*0.618691^3+360*7500*400*(sin52.74+sin(0.664*180))/π
=2/3*14.3*400^3*0.618691^3+360*7500*400*(sin52.74+sin119.52)/π
=2/3*14.3*400^3*0.618691^3+360*7500*400*0.757718/π
=2/3*14.3*64000000*0.618691^3+360*7500*400*0.757718/π
=2/3*14.3*64000000*0.236821646031713+360*7500*400*0.757718/π
=0.666667*14.3*64000000*0.236821646031713+360*7500*400*0.757718/π
=9.533338*64000000*0.236821646031713+360*7500*400*0.757718/π
=610133632*0.236821646031713+360*7500*400*0.757718/π
=144492851.029547+360*7500*400*0.757718/π
=144492851.029547+2700000*400*0.757718/π
=144492851.029547+1080000000*0.757718/π
=144492851.029547+818335440/π
=144492851.029547+260484260.766562
=404977111.796109 答案:2/3*14.3*400^3*(sin(0.293*180))^3+360*7500*400*(sin(0.293*180)+sin(0.664*180))/π=404977111.796109 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!