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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 90+arctan(13.77*0.71)-arctan(0.2*0.71)-arctan(0.71)-arctan(81*0.71) .
    Question type: Mathematical calculation
    Solution:
          90+arctan(13.77*0.71)-arctan(0.2*0.71)-arctan(0.71)-arctan(81*0.71)
        =90+arctan9.7767-arctan(0.2*0.71)-arctan(0.71)-arctan(81*0.71)
        =90+arctan9.7767-arctan0.142-arctan(0.71)-arctan(81*0.71)
        =90+arctan9.7767-arctan0.142-arctan0.71-arctan(81*0.71)
        =90+arctan9.7767-arctan0.142-arctan0.71-arctan57.51
        =90+1.468867-arctan0.142-arctan0.71-arctan57.51
        =90+1.468867-0.141057-arctan0.71-arctan57.51
        =90+1.468867-0.141057-0.617406-arctan57.51
        =90+1.468867-0.141057-0.617406-1.55341
        =91.468867-0.141057-0.617406-1.55341
        =91.32781-0.617406-1.55341
        =90.710404-1.55341
        =89.156994

    Answer:90+arctan(13.77*0.71)-arctan(0.2*0.71)-arctan(0.71)-arctan(81*0.71)=89.156994
    Note: Radian


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