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-arctan0.1×0.375-arctan0.01×0.375-arctan(1/0.375)*0.375-arctan(1/84.85)*0.375+arctan(1/3)*0.375+arctan(1/10.61)*0.375 的值.
    题型：数学计算
    解:
          -90-arctan0.1×0.375-arctan0.01×0.375-arctan(1/0.375)*0.375-arctan(1/84.85)*0.375+arctan(1/3)*0.375+arctan(1/10.61)*0.375
        =-90-arctan0.1×0.375-arctan0.01×0.375-arctan2.666667*0.375-arctan(1/84.85)*0.375+arctan(1/3)*0.375+arctan(1/10.61)*0.375
        =-90-arctan0.1×0.375-arctan0.01×0.375-arctan2.666667*0.375-arctan0.011786*0.375+arctan(1/3)*0.375+arctan(1/10.61)*0.375
        =-90-arctan0.1×0.375-arctan0.01×0.375-arctan2.666667*0.375-arctan0.011786*0.375+arctan0.333333*0.375+arctan(1/10.61)*0.375
        =-90-arctan0.1×0.375-arctan0.01×0.375-arctan2.666667*0.375-arctan0.011786*0.375+arctan0.333333*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-arctan0.01×0.375-arctan2.666667*0.375-arctan0.011786*0.375+arctan0.333333*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-0.01×0.375-arctan2.666667*0.375-arctan0.011786*0.375+arctan0.333333*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-0.01×0.375-1.212026*0.375-arctan0.011786*0.375+arctan0.333333*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-0.01×0.375-1.212026*0.375-0.011785*0.375+arctan0.333333*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-0.01×0.375-1.212026*0.375-0.011785*0.375+0.32175*0.375+arctan0.094251*0.375
        =-90-0.099669×0.375-0.01×0.375-1.212026*0.375-0.011785*0.375+0.32175*0.375+0.093973*0.375
        =-90-0.037376-0.01×0.375-1.212026*0.375-0.011785*0.375+0.32175*0.375+0.093973*0.375
        =-90-0.037376-0.00375-1.212026*0.375-0.011785*0.375+0.32175*0.375+0.093973*0.375
        =-90-0.037376-0.00375-0.45451-0.011785*0.375+0.32175*0.375+0.093973*0.375
        =-90-0.037376-0.00375-0.45451-0.004419+0.32175*0.375+0.093973*0.375
        =-90-0.037376-0.00375-0.45451-0.004419+0.120656+0.093973*0.375
        =-90-0.037376-0.00375-0.45451-0.004419+0.120656+0.03524
        =-90.037376-0.00375-0.45451-0.004419+0.120656+0.03524
        =-90.041126-0.45451-0.004419+0.120656+0.03524
        =-90.495636-0.004419+0.120656+0.03524
        =-90.500055+0.120656+0.03524
        =-90.379399+0.03524
        =-90.344159
    答案:-90-arctan0.1×0.375-arctan0.01×0.375-arctan(1/0.375)*0.375-arctan(1/84.85)*0.375+arctan(1/3)*0.375+arctan(1/10.61)*0.375=-90.344159
    注：弧度制

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