Let's say we are trying to find the limit. Notice in a new color. Let me do it in this purplish color. Let's say we wanted to find the limit as x approaches 0 of sine of x over x. Now, if we just view this, if we just try to evaluate it at 0 or take the limit as we approach 0 in each of these functions, we're going to get something that looks like 0 over 0. Sine of 0 is 0, or the limit as x approaches 0 of sine of x is 0, and obviously as x approaches 0 of x, that's also going to be 0. This is our indeterminate form.