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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 2*arctan(0.0000075/0.22) .
    Question type: Mathematical calculation
    Solution:
          2*arctan(0.0000075/0.22)
        =2*arctan0.000034
        =2*0.000034
        =0.000068
    Answer:2*arctan(0.0000075/0.22)=0.000068
    Note: Radian

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