Hey guys! I am taking calculus II this semester as a senior in college, and the last time I took math was calculus I as a junior in high school. It's been 5 years and I don't remember how derivatives and integrals work. I'm a little concerned about jumping right into calculus II material. These first 2 weeks of class I will have a bunch of free time and was thinking about getting an AP calculus ab review book to refresh on calculus I material, and maybe watch a few videos? Does anyone have any suggestions as to good calculus videos or what else I should to do relearn calculus? Thank you!