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[1/1 Formula]
    Work: Calculate the value of equation 126-3.1415926×0.9^2×4 .
    Question type: Mathematical calculation
    Solution:
          126-3.1415926×0.9^2×4
        =126-3.1415926×0.81×4
        =126-2.54469×4
        =126-10.17876
        =115.82124
    Answer:126-3.1415926×0.9^2×4=115.82124

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