计算-1÷(-2+1又1/2)²-【2-(-3/2)³×(-4/3)²-3²-(-2)³】×(-1)

计算-1÷(-2+1又1/2)²-【2-(-3/2)³×(-4/3)²-3²-(-2)³】×(-1)

-1/2+1/2÷【(-1又1/2)³+(-1/2)²】×(-2.5)²=-1/2+1/2÷(-27/8+1/4)×25/4=-1/2+1/2÷(-25/8)×25/4=-1/2+1/2×(-8/25)×25/4=-1/2-1=-3/2
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