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119025

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请来答谢谢{4又1/5-3又1/2+1又3/4}÷345²-(-0.01²)÷11_百度知 ...

{4又1/5-3又1/2+1又3/4}÷345²-（-0.01²）÷11 ={4.2-3.5+1.75}÷345²+0.0001÷11 =2.45÷345²+1/110000 =2.45÷119025+1/110000 ≈0.00002058+0.000009091 =0.000011149

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