What is the domain of ln(x^2+1) ?

The domain of ln(x^2+1) is -infinity <x<infinity

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domain of ln(x^2+1)

domain

ln (x^{2} + 1)

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

Find positive values for logs:

- \infty < x < \infty

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

f (x) = ∣ x ∣ + 2 x - 3

f (x) = \frac{2 x}{4 x ^{2} + x - 3}

5 x - 4

y = - 2 x + 20

f (x) = \frac{1 + x}{e ^{c o s (x)}}

What is the domain of ln(x^2+1) ?
The domain of ln(x^2+1) is -infinity <x<infinity