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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(0.269*180))^3+360*5000*400*(sin(0.269*180)+sin(0.712*180))/π 的值.
题型:数学计算
解:
2/3*14.3*400^3*(sin(0.269*180))^3+360*5000*400*(sin(0.269*180)+sin(0.712*180))/π
=2/3*14.3*400^3*(sin48.42)^3+360*5000*400*(sin(0.269*180)+sin(0.712*180))/π
=2/3*14.3*400^3*(-0.96251)^3+360*5000*400*(sin(0.269*180)+sin(0.712*180))/π
=2/3*14.3*400^3*(-0.96251)^3+360*5000*400*(sin48.42+sin(0.712*180))/π
=2/3*14.3*400^3*(-0.96251)^3+360*5000*400*(sin48.42+sin128.16)/π
=2/3*14.3*400^3*(-0.96251)^3+360*5000*400*(-0.361073)/π
=2/3*14.3*64000000*(-0.96251)^3+360*5000*400*(-0.361073)/π
=2/3*14.3*64000000*-0.891693808101251+360*5000*400*(-0.361073)/π
=0.666667*14.3*64000000*(-0.891693808101251)+360*5000*400*(-0.361073)/π
=9.533338*64000000*(-0.891693808101251)+360*5000*400*(-0.361073)/π
=610133632*(-0.891693808101251)+360*5000*400*(-0.361073)/π
=(-544052381.768727)+360*5000*400*(-0.361073)/π
=-544052381.768727+1800000*400*(-0.361073)/π
=-544052381.768727+720000000*(-0.361073)/π
=-544052381.768727+(-259972560)/π
=-544052381.768727+(-82751835.984509)
=-626804217.753236 答案:2/3*14.3*400^3*(sin(0.269*180))^3+360*5000*400*(sin(0.269*180)+sin(0.712*180))/π=-626804217.753236 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!