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(13*1.25)+arctan(13*0.0769)-arctan(13*0.1)-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172) 的值.
    题型：数学计算
    解:
          90+arctan(13*1.25)+arctan(13*0.0769)-arctan(13*0.1)-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan(13*0.0769)-arctan(13*0.1)-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan(13*0.1)-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan1.3-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan1.3-arctan0.13-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan1.3-arctan0.13-arctan0.26-arctan(13*31.25)-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan1.3-arctan0.13-arctan0.26-arctan406.25-arctan(13*0.0172)
        =90+arctan16.25+arctan0.9997-arctan1.3-arctan0.13-arctan0.26-arctan406.25-arctan0.2236
        =90+1.509335+arctan0.9997-arctan1.3-arctan0.13-arctan0.26-arctan406.25-arctan0.2236
        =90+1.509335+0.785248-arctan1.3-arctan0.13-arctan0.26-arctan406.25-arctan0.2236
        =90+1.509335+0.785248-0.915101-arctan0.13-arctan0.26-arctan406.25-arctan0.2236
        =90+1.509335+0.785248-0.915101-0.129275-arctan0.26-arctan406.25-arctan0.2236
        =90+1.509335+0.785248-0.915101-0.129275-0.254368-arctan406.25-arctan0.2236
        =90+1.509335+0.785248-0.915101-0.129275-0.254368-1.568335-arctan0.2236
        =90+1.509335+0.785248-0.915101-0.129275-0.254368-1.568335-0.219982
        =91.509335+0.785248-0.915101-0.129275-0.254368-1.568335-0.219982
        =92.294583-0.915101-0.129275-0.254368-1.568335-0.219982
        =91.379482-0.129275-0.254368-1.568335-0.219982
        =91.250207-0.254368-1.568335-0.219982
        =90.995839-1.568335-0.219982
        =89.427504-0.219982
        =89.207522
    答案:90+arctan(13*1.25)+arctan(13*0.0769)-arctan(13*0.1)-arctan(13*0.01)-arctan(13*0.02)-arctan(13*31.25)-arctan(13*0.0172)=89.207522
    注：弧度制

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