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*1.2*1372*(0.7*2.9-0.287)*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*(sin2.5)*((2.9-0.287)^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2) 的值.
题型:数学计算
解:
2*1.2*1372*(0.7*2.9-0.287)*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*(sin2.5)*((2.9-0.287)^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2)
=2*1.2*1372*1.743*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*(sin2.5)*((2.9-0.287)^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2)
=2*1.2*1372*1.743*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*((2.9-0.287)^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2)
=2*1.2*1372*1.743*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(2.613^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2)
=2*1.2*1372*1.743*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(2.613^3*cos2.5/3-0.287*0.5*2.613^2)
=2*1.2*1372*1.743*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=2*1.2*1372*1.743*-0.801144-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*-5.744178
=2.4*1372*1.743*(-0.801144)-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=3292.8*1.743*(-0.801144)-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=5739.3504*(-0.801144)-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=(-4598.046137)-1.2*8.6/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=-4598.046137-10.32/5.8*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=-4598.046137-1.77931*1.25*1.25*51.42*51.42*0.598472*(-5.744178)
=-4598.046137-2.224137*1.25*51.42*51.42*0.598472*(-5.744178)
=-4598.046137-2.780171*51.42*51.42*0.598472*(-5.744178)
=-4598.046137-142.956393*51.42*0.598472*(-5.744178)
=-4598.046137-7350.817728*0.598472*(-5.744178)
=-4598.046137-4399.258587*(-5.744178)
=-4598.046137-(-25270.124392)
=20672.078255 答案:2*1.2*1372*(0.7*2.9-0.287)*cos2.5-1.2*8.6/5.8*1.25*1.25*51.42*51.42*(sin2.5)*((2.9-0.287)^3*cos2.5/3-0.287*0.5*(2.9-0.287)^2)=20672.078255 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!