College Algebra
Rationalize the denominator of the radical expression.
3191\frac{\sqrt{31}}{\sqrt{91}}9131
313191\frac{31\sqrt{31}}{91}913131
31282191\frac{31\sqrt{2821}}{91}91312821
282191\frac{\sqrt{2821}}{91}912821
319131\sqrt{91}3191