>>12833237Have to practice integration. That's it, really. It's the first math class where nobody's found a nice algorithmic way to generate infinite numbers of questions with nice answers that can all be solved the same way.
Up until that point, you're taught that math is about applying some formula over and over again, so when you have to learn six different formulas to apply, that's when it gets "hard". Once you break through that barrier, you realize that real math was never about just applying a formula and everything afterwards is easy again.
Also, it's the hardest math class that compscitards are required to take, hence it's the "hardest" in general.