总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 2×14300×0.5^3×(sin(180×0.282))^3÷3+14300×0.282×0.5^2×(1-sin(180×2×0.282)/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282) 的值.
题型:数学计算
解:
2×14300×0.5^3×(sin(180×0.282))^3÷3+14300×0.282×0.5^2×(1-sin(180×2×0.282)/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×(sin50.76)^3÷3+14300×0.282×0.5^2×(1-sin(180×2×0.282)/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×(1-sin(180×2×0.282)/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×(1-sin101.52/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×(1-sin101.52/1.771806)×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(sin50.76+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(sin50.76+sin(180×0.686))÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(sin50.76+sin123.48)÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(-0.343371)÷(1.25-3×0.282)
=2×14300×0.5^3×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(-0.343371)÷0.404
=2×14300×0.125×0.474607^3÷3+14300×0.282×0.5^2×0.52845×0.4375×(-0.343371)÷0.404
=2×14300×0.125×0.106906083154127÷3+14300×0.282×0.5^2×0.52845×0.4375×(-0.343371)÷0.404
=2×14300×0.125×0.106906083154127÷3+14300×0.282×0.25×0.52845×0.4375×(-0.343371)÷0.404
=28600×0.125×0.106906083154127÷3+14300×0.282×0.25×0.52845×0.4375×(-0.343371)÷0.404
=3575×0.106906083154127÷3+14300×0.282×0.25×0.52845×0.4375×(-0.343371)÷0.404
=382.189247÷3+14300×0.282×0.25×0.52845×0.4375×(-0.343371)÷0.404
=127.396416+14300×0.282×0.25×0.52845×0.4375×(-0.343371)÷0.404
=127.396416+4032.6×0.25×0.52845×0.4375×(-0.343371)÷0.404
=127.396416+1008.15×0.52845×0.4375×(-0.343371)÷0.404
=127.396416+532.756867×0.4375×(-0.343371)÷0.404
=127.396416+233.081129×(-0.343371)÷0.404
=127.396416+(-80.0333)÷0.404
=127.396416+(-198.102228)
=-70.705812 答案:2×14300×0.5^3×(sin(180×0.282))^3÷3+14300×0.282×0.5^2×(1-sin(180×2×0.282)/(6.283×0.282))×(0.4375)×(sin(180×0.282)+sin(180×(1.25-2×0.282)))÷(1.25-3×0.282)=-70.705812 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!