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[1/1 Formula]
    Work: Calculate the value of equation 180-90-arctan(0.5*2)-arctan(0.125*2) .
    Question type: Mathematical calculation
    Solution:
          180-90-arctan(0.5*2)-arctan(0.125*2)
        =180-90-arctan1-arctan(0.125*2)
        =180-90-arctan1-arctan0.25
        =180-90-0.785398-arctan0.25
        =180-90-0.785398-0.244979
        =90-0.785398-0.244979
        =89.214602-0.244979
        =88.969623
    Answer:180-90-arctan(0.5*2)-arctan(0.125*2)=88.969623
    Note: Radian

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