what are the removable discontinuities of the following function?\n$f(x)=\frac{x^{2}-36}{x^{3}-36x}$\n$x =…

what are the removable discontinuities of the following function?\n$f(x)=\frac{x^{2}-36}{x^{3}-36x}$\n$x = - 6,x = 0$, and $x = 6$\n$x=-6$ and $x = 6$\n$x = 0$ and $x=-6$\n$x = 0$ and $x = 6$
Answer
Explanation:
Step1: Factor the numerator and denominator
The numerator $x^{2}-36=(x + 6)(x - 6)$ by the difference - of - squares formula $a^{2}-b^{2}=(a + b)(a - b)$. The denominator $x^{3}-36x=x(x^{2}-36)=x(x + 6)(x - 6)$. So, $f(x)=\frac{(x + 6)(x - 6)}{x(x + 6)(x - 6)}$.
Step2: Simplify the function
Cancel out the common factors $(x + 6)$ and $(x - 6)$ (for $x\neq - 6,6$). The simplified function is $f(x)=\frac{1}{x}$ for $x\neq - 6,6$.
Step3: Identify removable discontinuities
Removable discontinuities occur at the values of $x$ that make the original function undefined but can be removed by simplification. The original function $f(x)=\frac{x^{2}-36}{x^{3}-36x}$ is undefined at $x=-6,x = 0,x = 6$. But after simplification, the factors $(x + 6)$ and $(x - 6)$ are removed. So the removable discontinuities are at $x=-6$ and $x = 6$.
Answer:
$x=-6$ and $x = 6$