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〖1/1算式〗
作业:求算式 0.21*1.43*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.21))/(2*3.14159*0.21))+(3*0.21-1.25)*270*3848 的值.
题型:数学计算
解:
0.21*1.43*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.21))/(2*3.14159*0.21))+(3*0.21-1.25)*270*3848
=0.21*1.43*0.45*0.45*3.14159*(1-(sin1.319468)/(2*3.14159*0.21))+(3*0.21-1.25)*270*3848
=0.21*1.43*0.45*0.45*3.14159*(1-0.968583/(2*3.14159*0.21))+(3*0.21-1.25)*270*3848
=0.21*1.43*0.45*0.45*3.14159*(1-0.968583/1.319468)+(3*0.21-1.25)*270*3848
=0.21*1.43*0.45*0.45*3.14159*0.265929+(3*0.21-1.25)*270*3848
=0.21*1.43*0.45*0.45*3.14159*0.265929+(-0.62)*270*3848
=0.3003*0.45*0.45*3.14159*0.265929+(-0.62)*270*3848
=0.135135*0.45*3.14159*0.265929+(-0.62)*270*3848
=0.060811*3.14159*0.265929+(-0.62)*270*3848
=0.191043*0.265929+(-0.62)*270*3848
=0.050804+(-0.62)*270*3848
=0.050804+(-167.4)*3848
=0.050804+(-644155.2)
=-644155.149196 答案:0.21*1.43*0.45*0.45*3.14159*(1-(sin(2*3.14159*0.21))/(2*3.14159*0.21))+(3*0.21-1.25)*270*3848=-644155.149196 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!