If a, B are opposite to each other, C, D are reciprocal to each other, and X is the negative integer with the smallest absolute value, then the value of the third power + (- CD) x + (a + b) of X is
solution
a. B is opposite to each other
a+b=0
c. D is reciprocal to each other
cd=1
X is a negative integer with the smallest absolute value
∴x=-1
∴x³+(-cd)+(a+b)
=(-1)³-1+0
=-1-1
=-2
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