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-arctan0.1×84.85-arctan0.01×84.85-arctan(1/0.375)*84.85-arctan(1/84.85)*84.85+arctan(1/3)*84.85+arctan(1/10.61)*84.85 的值.
    题型：数学计算
    解:
          -90-arctan0.1×84.85-arctan0.01×84.85-arctan(1/0.375)*84.85-arctan(1/84.85)*84.85+arctan(1/3)*84.85+arctan(1/10.61)*84.85
        =-90-arctan0.1×84.85-arctan0.01×84.85-arctan2.666667*84.85-arctan(1/84.85)*84.85+arctan(1/3)*84.85+arctan(1/10.61)*84.85
        =-90-arctan0.1×84.85-arctan0.01×84.85-arctan2.666667*84.85-arctan0.011786*84.85+arctan(1/3)*84.85+arctan(1/10.61)*84.85
        =-90-arctan0.1×84.85-arctan0.01×84.85-arctan2.666667*84.85-arctan0.011786*84.85+arctan0.333333*84.85+arctan(1/10.61)*84.85
        =-90-arctan0.1×84.85-arctan0.01×84.85-arctan2.666667*84.85-arctan0.011786*84.85+arctan0.333333*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-arctan0.01×84.85-arctan2.666667*84.85-arctan0.011786*84.85+arctan0.333333*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-0.01×84.85-arctan2.666667*84.85-arctan0.011786*84.85+arctan0.333333*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-0.01×84.85-1.212026*84.85-arctan0.011786*84.85+arctan0.333333*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-0.01×84.85-1.212026*84.85-0.011785*84.85+arctan0.333333*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-0.01×84.85-1.212026*84.85-0.011785*84.85+0.32175*84.85+arctan0.094251*84.85
        =-90-0.099669×84.85-0.01×84.85-1.212026*84.85-0.011785*84.85+0.32175*84.85+0.093973*84.85
        =-90-8.456915-0.01×84.85-1.212026*84.85-0.011785*84.85+0.32175*84.85+0.093973*84.85
        =-90-8.456915-0.8485-1.212026*84.85-0.011785*84.85+0.32175*84.85+0.093973*84.85
        =-90-8.456915-0.8485-102.840406-0.011785*84.85+0.32175*84.85+0.093973*84.85
        =-90-8.456915-0.8485-102.840406-0.999957+0.32175*84.85+0.093973*84.85
        =-90-8.456915-0.8485-102.840406-0.999957+27.300487+0.093973*84.85
        =-90-8.456915-0.8485-102.840406-0.999957+27.300487+7.973609
        =-98.456915-0.8485-102.840406-0.999957+27.300487+7.973609
        =-99.305415-102.840406-0.999957+27.300487+7.973609
        =-202.145821-0.999957+27.300487+7.973609
        =-203.145778+27.300487+7.973609
        =-175.845291+7.973609
        =-167.871682
    答案:-90-arctan0.1×84.85-arctan0.01×84.85-arctan(1/0.375)*84.85-arctan(1/84.85)*84.85+arctan(1/3)*84.85+arctan(1/10.61)*84.85=-167.871682
    注：弧度制

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