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-arctan0.1×5-arctan0.01×5-arctan(1/0.375)*5-arctan(1/84.85)*5+arctan(1/3)*5+arctan(1/10.61)*5 的值.
    题型：数学计算
    解:
          -90-arctan0.1×5-arctan0.01×5-arctan(1/0.375)*5-arctan(1/84.85)*5+arctan(1/3)*5+arctan(1/10.61)*5
        =-90-arctan0.1×5-arctan0.01×5-arctan2.666667*5-arctan(1/84.85)*5+arctan(1/3)*5+arctan(1/10.61)*5
        =-90-arctan0.1×5-arctan0.01×5-arctan2.666667*5-arctan0.011786*5+arctan(1/3)*5+arctan(1/10.61)*5
        =-90-arctan0.1×5-arctan0.01×5-arctan2.666667*5-arctan0.011786*5+arctan0.333333*5+arctan(1/10.61)*5
        =-90-arctan0.1×5-arctan0.01×5-arctan2.666667*5-arctan0.011786*5+arctan0.333333*5+arctan0.094251*5
        =-90-0.099669×5-arctan0.01×5-arctan2.666667*5-arctan0.011786*5+arctan0.333333*5+arctan0.094251*5
        =-90-0.099669×5-0.01×5-arctan2.666667*5-arctan0.011786*5+arctan0.333333*5+arctan0.094251*5
        =-90-0.099669×5-0.01×5-1.212026*5-arctan0.011786*5+arctan0.333333*5+arctan0.094251*5
        =-90-0.099669×5-0.01×5-1.212026*5-0.011785*5+arctan0.333333*5+arctan0.094251*5
        =-90-0.099669×5-0.01×5-1.212026*5-0.011785*5+0.32175*5+arctan0.094251*5
        =-90-0.099669×5-0.01×5-1.212026*5-0.011785*5+0.32175*5+0.093973*5
        =-90-0.498345-0.01×5-1.212026*5-0.011785*5+0.32175*5+0.093973*5
        =-90-0.498345-0.05-1.212026*5-0.011785*5+0.32175*5+0.093973*5
        =-90-0.498345-0.05-6.06013-0.011785*5+0.32175*5+0.093973*5
        =-90-0.498345-0.05-6.06013-0.058925+0.32175*5+0.093973*5
        =-90-0.498345-0.05-6.06013-0.058925+1.60875+0.093973*5
        =-90-0.498345-0.05-6.06013-0.058925+1.60875+0.469865
        =-90.498345-0.05-6.06013-0.058925+1.60875+0.469865
        =-90.548345-6.06013-0.058925+1.60875+0.469865
        =-96.608475-0.058925+1.60875+0.469865
        =-96.6674+1.60875+0.469865
        =-95.05865+0.469865
        =-94.588785
    答案:-90-arctan0.1×5-arctan0.01×5-arctan(1/0.375)*5-arctan(1/84.85)*5+arctan(1/3)*5+arctan(1/10.61)*5=-94.588785
    注：弧度制

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