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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation π-arctan-125-arctan75 .
    Question type: Mathematical calculation
    Solution:
          π-arctan-125-arctan75
        =π--1.562796-arctan75
        =π--1.562796-1.557464
        =4.704389-1.557464
        =3.146925
    Answer:π-arctan-125-arctan75=3.146925
    Note: Radian

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