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Reil [10]
3 years ago
13

Assinale todas as assertivas corretas com relação aos princípios de ensino na Matemática.

Mathematics
1 answer:
Neko [114]3 years ago
6 0
Do u speak English...............
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|x-1| if x&gt;1<br> how do you simplify this
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Use the definition of absolute value.

|x| = \begin{cases} x & \text{if } x \ge0 \\ -x & \text{if } x < 0 \end{cases}

The absolute value is always non-negative. So if x is already non-negative, |x|=x is unchanged. But if x is negative, then |x|=-x because multiplying x by -1 makes it positive.

Now, if x>1, then by the definition of absolute value,

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