Cosine of pi over 4. Let me write this over here. Cosine of pi over 4 is square root of 2 over 2. Cosine squared of pi over 4 is going to be equal to 2 over 4, which is equal to 1 half. And so secant squared of pi over 4 is just 1 over that is equal to 2. So this is going to be equal to, let me rewrite this. So the secant squared of pi over 4, let me erase this right over here.