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*100)-arctan(0.01*100)-arctan(100/0.375)-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61) 的值.
    题型：数学计算
    解:
          -90-arctan(0.1*100)-arctan(0.01*100)-arctan(100/0.375)-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61)
        =-90-arctan10-arctan(0.01*100)-arctan(100/0.375)-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61)
        =-90-arctan10-arctan1-arctan(100/0.375)-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61)
        =-90-arctan10-arctan1-arctan266.666667-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61)
        =-90-arctan10-arctan1-arctan266.666667-arctan1.17855+arctan(100/3)+arctan(100/10.61)
        =-90-arctan10-arctan1-arctan266.666667-arctan1.17855+arctan33.333333+arctan(100/10.61)
        =-90-arctan10-arctan1-arctan266.666667-arctan1.17855+arctan33.333333+arctan9.425071
        =-90-1.471128-arctan1-arctan266.666667-arctan1.17855+arctan33.333333+arctan9.425071
        =-90-1.471128-0.785398-arctan266.666667-arctan1.17855+arctan33.333333+arctan9.425071
        =-90-1.471128-0.785398-1.567046-arctan1.17855+arctan33.333333+arctan9.425071
        =-90-1.471128-0.785398-1.567046-0.867174+arctan33.333333+arctan9.425071
        =-90-1.471128-0.785398-1.567046-0.867174+1.540805+arctan9.425071
        =-90-1.471128-0.785398-1.567046-0.867174+1.540805+1.465092
        =-91.471128-0.785398-1.567046-0.867174+1.540805+1.465092
        =-92.256526-1.567046-0.867174+1.540805+1.465092
        =-93.823572-0.867174+1.540805+1.465092
        =-94.690746+1.540805+1.465092
        =-93.149941+1.465092
        =-91.684849
    答案:-90-arctan(0.1*100)-arctan(0.01*100)-arctan(100/0.375)-arctan(100/84.85)+arctan(100/3)+arctan(100/10.61)=-91.684849
    注：弧度制

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