What is the domain of f(x)=((x+2))/(12-sqrt(x^2-25)) ?

The domain of f(x)=((x+2))/(12-sqrt(x^2-25)) is x 13

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domain of f(x)=((x+2))/(12-sqrt(x^2-25))

domain

f (x) = \frac{( x + 2 )}{12 - x ^{2} - 25}

x < - 13 or - 13 < x \leq - 5 or 5 \leq x < 13 or x > 13

Interval Notation

(- \infty, - 13) \cup (- 13, - 5] \cup [5, 13) \cup (13, \infty)

Solution steps

Find non-negative values for radicals:

x \leq - 5 or x \geq 5

Find undefined (singularity) points:

x = 13, x = - 13

Combine real regions and undefined points for final function domain

x < - 13 or - 13 < x \leq - 5 or 5 \leq x < 13 or x > 13

f (x) = 2 x - 1 (\frac{1}{2})

f (x) = \frac{2 x}{( 9 - x ^{2} ) ^{2}}

f (x) = (4 - 5 x^{3})^{- 2}

f (x) = \frac{9 x - 5}{x ^{2} - 9 x + 8}

\frac{x ^{2} - 2 x}{x + 3}

What is the domain of f(x)=((x+2))/(12-sqrt(x^2-25)) ?
The domain of f(x)=((x+2))/(12-sqrt(x^2-25)) is x<-13\lor-13<x<=-5\lor 5<= x<13\lor x>13