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AMC12 2016 B

AMC12 2016 B · Q3

AMC12 2016 B · Q3. It mainly tests Absolute value.

Let $x=-2016$. What is the value of $\left|\left||x|-x\right|-|x|\right|-x$?
设$x=-2016$。求$\left|\left||x|-x\right|-|x|\right|-x$的值。
(A) -2016 -2016
(B) 0 0
(C) 2016 2016
(D) 4032 4032
(E) 6048 6048
Answer
Correct choice: (D)
正确答案:(D)
Solution
Answer (D): $\left|\left||1-2016|-(-2016)\right|-|-2016|\right|-(-2016)$ $=\left|\left|2016+2016\right|-2016\right|+2016=2016+2016=4032$
答案(D): $\left|\left||1-2016|-(-2016)\right|-|-2016|\right|-(-2016)$ $=\left|\left|2016+2016\right|-2016\right|+2016=2016+2016=4032$
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