如果a=-(-3)3,b=-(-3)2,c=-(-42),则-[a-(b-c)]的值为______.
题型:填空题难度:一般来源:不详
如果a=-(-3)3,b=-(-3)2,c=-(-42),则-[a-(b-c)]的值为______. |
答案
a=-(-3)3=27, b=-(-3)2=-9, c=-(-42)=16, 则-[a-(b-c)]=-[27-(-9-16)]=-[27+25]=-52. |
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