What is the domain of f(x)=(2x+4)/(x^2) ?

The domain of f(x)=(2x+4)/(x^2) is x 0

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domain of f(x)=(2x+4)/(x^2)

domain

f (x) = \frac{2 x + 4}{x ^{2}}

x < 0 or x > 0

Interval Notation

(- \infty, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0

The function domain

x < 0 or x > 0

f (x) = x e^{- x}

X^{3}

(7.3) (1.8)

f (x) = x + \frac{x ^{2}}{20}

y = 0.9 (sin (\frac{π}{3} - x) + 0.01)

What is the domain of f(x)=(2x+4)/(x^2) ?
The domain of f(x)=(2x+4)/(x^2) is x<0\lor x>0