(1)计算:|-4|-(3-π)0+2cos45°-(-12)-1(2)先化简,再请你用喜爱的数代入求值:(1+1x?1)÷xx2
(1)计算:|-4|-(3-π)0+2cos45°-(-12)-1(2)先化简,再请你用喜爱的数代入求值:(1+1x?1)÷xx2?1....
(1)计算:|-4|-(3-π)0+2cos45°-(-12)-1(2)先化简,再请你用喜爱的数代入求值:(1+1x?1)÷xx2?1.
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