domain of f(x)=(1-e^{x^2})/(1-e^{1-x^2)}
⚠ f(x)=(1-e^{x^2})/(1-e^{1-x^2)} is read as f(x)=(1-e^(x^2))/(1-e^(1-x^2))
We save the definition: f(x) = 1 -ex21 -e(1 -x2)
Let's find the domain of 1 -ex21 -e(1 -x2)
For the expression 1 -ex21 -e(1 -x2) to be defined, we must have: 1 -e(1 -x2) ≠ 0
You can apply the ln function on both sides:
ln(e(1 -x2)) ≠ ln(1)
ℹln(e(1 -x2)) = 1 -x2‖ln(1) = 0
1 -x2 ≠ 0
▶Domain of definition:   x ∈ ℝ \ { -1, 1 }