Problem 95 of 7
Before evaluating k(x)=x/(x^2-4) at x=1, determine whether the input is in the domain.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
apply domain restrictions.
Hidden until you reveal it.
Function must have square-root, rational, finite-table, or context domain restriction.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Check input restrictions before substitution.
2. For square roots require nonnegative radicand; for quotients require nonzero denominator; for contexts apply practical restrictions.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Evaluating invalid inputs as if unrestricted.