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(0.1*5000)-arctan(0.01*5000)-arctan(5000/0.375)-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61) 的值.
    题型：数学计算
    解:
          -90-arctan(0.1*5000)-arctan(0.01*5000)-arctan(5000/0.375)-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61)
        =-90-arctan500-arctan(0.01*5000)-arctan(5000/0.375)-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61)
        =-90-arctan500-arctan50-arctan(5000/0.375)-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61)
        =-90-arctan500-arctan50-arctan13333.333333-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61)
        =-90-arctan500-arctan50-arctan13333.333333-arctan58.927519+arctan(5000/3)+arctan(5000/10.61)
        =-90-arctan500-arctan50-arctan13333.333333-arctan58.927519+arctan1666.666667+arctan(5000/10.61)
        =-90-arctan500-arctan50-arctan13333.333333-arctan58.927519+arctan1666.666667+arctan471.253534
        =-90-1.568796-arctan50-arctan13333.333333-arctan58.927519+arctan1666.666667+arctan471.253534
        =-90-1.568796-1.550799-arctan13333.333333-arctan58.927519+arctan1666.666667+arctan471.253534
        =-90-1.568796-1.550799-1.570721-arctan58.927519+arctan1666.666667+arctan471.253534
        =-90-1.568796-1.550799-1.570721-1.553828+arctan1666.666667+arctan471.253534
        =-90-1.568796-1.550799-1.570721-1.553828+1.570196+arctan471.253534
        =-90-1.568796-1.550799-1.570721-1.553828+1.570196+1.568674
        =-91.568796-1.550799-1.570721-1.553828+1.570196+1.568674
        =-93.119595-1.570721-1.553828+1.570196+1.568674
        =-94.690316-1.553828+1.570196+1.568674
        =-96.244144+1.570196+1.568674
        =-94.673948+1.568674
        =-93.105274
    答案:-90-arctan(0.1*5000)-arctan(0.01*5000)-arctan(5000/0.375)-arctan(5000/84.85)+arctan(5000/3)+arctan(5000/10.61)=-93.105274
    注：弧度制

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