Recent content by grapez

Great, I think I see it now. So is this a common pattern/question that comes up (a constant as a numerator and the sum of two squares in the denominator)? I am wondering if this is something that comes up often in an AP calculus test, where I should notice the trig identity 1 + tan^2(x) =...

Thanks for all the help. A couple of questions: a. How did you factor out the 9 in the denominator? I see you brought a 3 out of the integral, but it is not clear to me how that cancels out the 9? b. A more general question about writing in the forum - how does one code the various operations...

A purported AP questions asks to evaluate the following integral: Integral of (9)/ (1 +9t^2) as 0 < t < 1/3. I understand that we need to use some sort of substitution techniques to solve. But I was hoping to get a specific explanation of what technique to use? Thanks.