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*10000)-arctan(0.01*10000)-arctan(10000/0.375)-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61) 的值.
    题型：数学计算
    解:
          -90-arctan(0.1*10000)-arctan(0.01*10000)-arctan(10000/0.375)-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61)
        =-90-arctan1000-arctan(0.01*10000)-arctan(10000/0.375)-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61)
        =-90-arctan1000-arctan100-arctan(10000/0.375)-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61)
        =-90-arctan1000-arctan100-arctan26666.666667-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61)
        =-90-arctan1000-arctan100-arctan26666.666667-arctan117.855038+arctan(10000/3)+arctan(10000/10.61)
        =-90-arctan1000-arctan100-arctan26666.666667-arctan117.855038+arctan3333.333333+arctan(10000/10.61)
        =-90-arctan1000-arctan100-arctan26666.666667-arctan117.855038+arctan3333.333333+arctan942.507069
        =-90-1.569796-arctan100-arctan26666.666667-arctan117.855038+arctan3333.333333+arctan942.507069
        =-90-1.569796-1.560797-arctan26666.666667-arctan117.855038+arctan3333.333333+arctan942.507069
        =-90-1.569796-1.560797-1.570759-arctan117.855038+arctan3333.333333+arctan942.507069
        =-90-1.569796-1.560797-1.570759-1.562312+arctan3333.333333+arctan942.507069
        =-90-1.569796-1.560797-1.570759-1.562312+1.570496+arctan942.507069
        =-90-1.569796-1.560797-1.570759-1.562312+1.570496+1.569735
        =-91.569796-1.560797-1.570759-1.562312+1.570496+1.569735
        =-93.130593-1.570759-1.562312+1.570496+1.569735
        =-94.701352-1.562312+1.570496+1.569735
        =-96.263664+1.570496+1.569735
        =-94.693168+1.569735
        =-93.123433
    答案:-90-arctan(0.1*10000)-arctan(0.01*10000)-arctan(10000/0.375)-arctan(10000/84.85)+arctan(10000/3)+arctan(10000/10.61)=-93.123433
    注：弧度制

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