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作业:求算式 2/3*14300*π*0.45^2*0.7*(sin0.32*π)^3/π+300000*0.00382*0.45*(sin0.32*π+sin0.61*π)/π 的值.
题型:数学计算
解:
2/3*14300*π*0.45^2*0.7*(sin0.32*π)^3/π+300000*0.00382*0.45*(sin0.32*π+sin0.61*π)/π
=2/3*14300*π*0.45^2*0.7*0.988241^3/π+300000*0.00382*0.45*(sin0.32*π+sin0.61*π)/π
=2/3*14300*π*0.45^2*0.7*0.988241^3/π+300000*0.00382*0.45*2.787956/π
=2/3*14300*π*0.2025*0.7*0.988241^3/π+300000*0.00382*0.45*2.787956/π
=2/3*14300*π*0.2025*0.7*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=0.666667*14300*π*0.2025*0.7*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=9533.3381*π*0.2025*0.7*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=29949.864939*0.2025*0.7*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=6064.84765*0.7*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=4245.393355*0.965136196278082/π+300000*0.00382*0.45*2.787956/π
=4097.382794/π+300000*0.00382*0.45*2.787956/π
=1304.237451+300000*0.00382*0.45*2.787956/π
=1304.237451+1146*0.45*2.787956/π
=1304.237451+515.7*2.787956/π
=1304.237451+1437.748909/π
=1304.237451+457.649692
=1761.887143 答案:2/3*14300*π*0.45^2*0.7*(sin0.32*π)^3/π+300000*0.00382*0.45*(sin0.32*π+sin0.61*π)/π=1761.887143 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!