So that same exact whole area, we can now write it as two separate integrals. So one integral that represents this area right over here. And then another integral that represents this area right over there. And we just say c is some constant between x and x squared. Well, how can we denote this area in purple? Well, that's going to be, so this thing is going to be equal to the sum of these two areas. The purple area we can show is the definite integral from x to c of our function of t. Cosine t over t dt.