[-4又3/1] +[-3.1416]+3又3/1=
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![[-4又3/1] +[-3.1416]+3又3/1=](/uploads/image/z/952487-71-7.jpg?t=%5B-4%E5%8F%883%2F1%5D+%2B%5B-3.1416%5D%2B3%E5%8F%883%2F1%3D)
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[-4又3/1] +[-3.1416]+3又3/1=
[-4又3/1] +[-3.1416]+3又3/1=
[-4又3/1] +[-3.1416]+3又3/1=
[-4又3/1] +[-3.1416]+3又3/1
=-13/3-3.1416+10/3
=-3/3-3.1416
=-4.1416