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lilymoniquesalaiz
08.10.2019 •
Mathematics
If f(x)= sqrtx-3 and g(x)=1-x^2, then what do you notice about the domain of (fxg)(x)?
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Ответ:
Step-by-step explanation:
If
then the domain of f(x) is all positive real numbers. This is ![x\geq0](/tpl/images/0301/1497/6e2de.png)
On the other hand the domain of g(x) would be all real numbers because it is a polynomial function
Therefore
Then the domain of
will be the same domain of ![f(x)](/tpl/images/0301/1497/3abe1.png)
All positive real numbers,
or x ∈ [0, ∞)
-----------------------------------------------------------------------------------------------
If f(x) =
then the domain of f(x) is
Therefore
Then the domain of
will be the same domain of ![f(x)](/tpl/images/0301/1497/3abe1.png)
Ответ: