Question 66
Consider the expression
$$
\frac{\sqrt{x+1}+\sqrt{x-1}}{\sqrt{x+1}-\sqrt{x-1}}.
$$
Part a. Rationalize the denominator and simplify the expression.
Part b. Evaluate the expression at $x=5/4$.
$$
\frac{\sqrt{x+1}+\sqrt{x-1}}{\sqrt{x+1}-\sqrt{x-1}}.
$$
Part a. Rationalize the denominator and simplify the expression.
Part b. Evaluate the expression at $x=5/4$.