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jacobmclawhorn3001
09.06.2021 •
Mathematics
Analyze the rational function: f(x) = (x^2 - 4)/(x^3 - 3x^2 - 10x)
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Ответ:
The function
has a zero:
, and two poles:
and
.
Step-by-step explanation:
Let be
a rational function armed with polynomial function. We proceed to factor the expression to the find the zeros and poles of the rational function:
1)
Given
2)
/Associative, commutative and distributive properties.
3)![f(x) = \frac{(x+2)\cdot (x-2)}{x\cdot (x-5)\cdot (x+2)}](/tpl/images/1367/6371/86841.png)
![x^{2} -(a+b)\cdot x + a\cdot b = (x-a)\cdot (x-b)](/tpl/images/1367/6371/7827b.png)
4)
Commutative property/Existence of multiplicative inverse/Modulative property/Result
The function
has a zero:
, and two poles:
and
.
Ответ: