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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 arctan(0.77*21)+90-arctan(0.1*21)-arctan(0.01*21)-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183) .
    Question type: Mathematical calculation
    Solution:
          arctan(0.77*21)+90-arctan(0.1*21)-arctan(0.01*21)-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan(0.1*21)-arctan(0.01*21)-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan(0.01*21)-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan0.21-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan0.21-arctan0.42-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan0.21-arctan0.42-arctan191.1+arctan(21*0.1241)-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan0.21-arctan0.42-arctan191.1+arctan2.6061-arctan(21*0.0183)
        =arctan16.17+90-arctan2.1-arctan0.21-arctan0.42-arctan191.1+arctan2.6061-arctan0.3843
        =1.509032+90-arctan2.1-arctan0.21-arctan0.42-arctan191.1+arctan2.6061-arctan0.3843
        =1.509032+90-1.126377-arctan0.21-arctan0.42-arctan191.1+arctan2.6061-arctan0.3843
        =1.509032+90-1.126377-0.206992-arctan0.42-arctan191.1+arctan2.6061-arctan0.3843
        =1.509032+90-1.126377-0.206992-0.397628-arctan191.1+arctan2.6061-arctan0.3843
        =1.509032+90-1.126377-0.206992-0.397628-1.565564+arctan2.6061-arctan0.3843
        =1.509032+90-1.126377-0.206992-0.397628-1.565564+1.204407-arctan0.3843
        =1.509032+90-1.126377-0.206992-0.397628-1.565564+1.204407-0.366899
        =91.509032-1.126377-0.206992-0.397628-1.565564+1.204407-0.366899
        =90.382655-0.206992-0.397628-1.565564+1.204407-0.366899
        =90.175663-0.397628-1.565564+1.204407-0.366899
        =89.778035-1.565564+1.204407-0.366899
        =88.212471+1.204407-0.366899
        =89.416878-0.366899
        =89.049979

    Answer:arctan(0.77*21)+90-arctan(0.1*21)-arctan(0.01*21)-arctan(0.02*21)-arctan(21*9.1)+arctan(21*0.1241)-arctan(21*0.0183)=89.049979
    Note: Radian


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