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☆算术计算1题
〖1/1算式〗
作业:求算式 0.25*1.43*1000*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.25))/(2*3.14159*0.25))+(3*0.25-1.25)*270*3.848 的值.
题型:数学计算
解:
0.25*1.43*1000*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.25))/(2*3.14159*0.25))+(3*0.25-1.25)*270*3.848
=0.25*1.43*1000*0.45*0.45*3.14159*(1-(sin1.570795)/(2*3.14159*0.25))+(3*0.25-1.25)*270*3.848
=0.25*1.43*1000*0.45*0.45*3.14159*(1-1/(2*3.14159*0.25))+(3*0.25-1.25)*270*3.848
=0.25*1.43*1000*0.45*0.45*3.14159*(1-1/1.570795)+(3*0.25-1.25)*270*3.848
=0.25*1.43*1000*0.45*0.45*3.14159*0.36338+(3*0.25-1.25)*270*3.848
=0.25*1.43*1000*0.45*0.45*3.14159*0.36338+(-0.5)*270*3.848
=0.3575*1000*0.45*0.45*3.14159*0.36338+(-0.5)*270*3.848
=357.5*0.45*0.45*3.14159*0.36338+(-0.5)*270*3.848
=160.875*0.45*3.14159*0.36338+(-0.5)*270*3.848
=72.39375*3.14159*0.36338+(-0.5)*270*3.848
=227.431481*0.36338+(-0.5)*270*3.848
=82.644052+(-0.5)*270*3.848
=82.644052+(-135)*3.848
=82.644052+(-519.48)
=-436.835948 答案:0.25*1.43*1000*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.25))/(2*3.14159*0.25))+(3*0.25-1.25)*270*3.848=-436.835948 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!