Question
$12-14$ Use the definition of continuity and the properties of limits to show that the function is continuous at the given number a.$$f(x)=3 x^{4}-5 x+\sqrt[3]{x^{2}+4}, \quad a=2$$
Step 1
We can see that $f(x)$ is defined for all real numbers, so it is defined at $x=2$. Show more…
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