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Mathematical calculation:
    Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
    It supports mathematical functions (including trigonometric functions).
    Current location:Mathematical operation > History of Mathematical Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 80-90-arctan(0.5*1.28)-arctan(0.125*1.28) .
    Question type: Mathematical calculation
    Solution:
          80-90-arctan(0.5*1.28)-arctan(0.125*1.28)
        =80-90-arctan0.64-arctan(0.125*1.28)
        =80-90-arctan0.64-arctan0.16
        =80-90-0.569313-arctan0.16
        =80-90-0.569313-0.158655
        =-10-0.569313-0.158655
        =-10.569313-0.158655
        =-10.727968

    Answer:80-90-arctan(0.5*1.28)-arctan(0.125*1.28)=-10.727968
    Note: Radian


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