Question

determine the set of points where the following function is continuous f(x)=ln(x^4 -1) or is it continuous on all real numbers?

Answer 1

use the fact that the log of a negative , is never a real number

Answer 2

which values of x , make the argument of the logarithm negative?

Answer 3

0 and 1..those are probably the only two aren't they.

Answer 4

well, abs(x) is greater than 1 is where it's continuous, thank you!