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 90+arctan(9.44*0.4643)+arctan(9.44*0.2033)-arctan(9.44*0.2)-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551) 的值.
    题型：数学计算
    解:
          90+arctan(9.44*0.4643)+arctan(9.44*0.2033)-arctan(9.44*0.2)-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan(9.44*0.2033)-arctan(9.44*0.2)-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan1.919152-arctan(9.44*0.2)-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan1.919152-arctan1.888-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan1.919152-arctan1.888-arctan4.72-arctan(9.44*0.0464)-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan1.919152-arctan1.888-arctan4.72-arctan0.438016-arctan(9.44*0.0551)
        =90+arctan4.382992+arctan1.919152-arctan1.888-arctan4.72-arctan0.438016-arctan0.520144
        =90+1.346481+arctan1.919152-arctan1.888-arctan4.72-arctan0.438016-arctan0.520144
        =90+1.346481+1.09044-arctan1.888-arctan4.72-arctan0.438016-arctan0.520144
        =90+1.346481+1.09044-1.083702-arctan4.72-arctan0.438016-arctan0.520144
        =90+1.346481+1.09044-1.083702-1.362019-arctan0.438016-arctan0.520144
        =90+1.346481+1.09044-1.083702-1.362019-0.412843-arctan0.520144
        =90+1.346481+1.09044-1.083702-1.362019-0.412843-0.479633
        =91.346481+1.09044-1.083702-1.362019-0.412843-0.479633
        =92.436921-1.083702-1.362019-0.412843-0.479633
        =91.353219-1.362019-0.412843-0.479633
        =89.9912-0.412843-0.479633
        =89.578357-0.479633
        =89.098724
    答案:90+arctan(9.44*0.4643)+arctan(9.44*0.2033)-arctan(9.44*0.2)-arctan(9.44*0.5)-arctan(9.44*0.0464)-arctan(9.44*0.0551)=89.098724
    注：弧度制

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