计算:-1的四次方+(1-0.5)*1⼀3*[2-(-3)的二次方]=

2024-12-23 03:03:01
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回答1:

-1的四次方+(1-0.5)*1/3*[2-(-3)的二次方]
=-1+1/2*1/3*(2-9)
=-1+1/6*(-7)
=-1-7/6
=-2又1/6