In this video we go over the specific parts of FRQs from the AP Calculus AB exam since 2007 that my students (and youtube commenters) have found the most challenging and the hardest. I will be writing out the solution, but you’ll have to pause the video if you want to read most of them. I’m just pointing out the challenging parts so you can review them quickly (if 35 minutes is quick) as you wrap up your studying for the AP exam. This video only covers things that have been on the Calc AB exam, but many of the questions appeared on both the AB and BC examand any of them can appear on the BC exam in any year since all AB material is also in BC.

Timestamps:
00:00 Intro and list of all the problems/parts we’re going to cover
00:54 2008 1d Unique area of a cross section problem
02:22 2016 5b The funnel problems! Volume of revolution everyone hated
03:47 2021 3c The spinning toy problem! People freaked out for no reason over this
05:12 2007B 5d Finding m and b so a line is a solution to a diff eq
07:49 2015 4d Basically the exact same problem...which is why we study!
08:23 2009B 3a Onesided limits; limit definition of the derivative
10:04 2011 6a Definition of continuity
11:38 2019 6d The Squeeze Theorem (first time appearing on a Calc AB exam?)
14:45 2007B 3c Related Rates (or chain rule)
17:09 2008B 2b Related Rates (or chain rule) again!
19:22 2009 2c & d How question parts can be linked together
21:24 2009 3a Why do we need an integral here?
23:37 2010 1c Don’t over or underthink the problems!
26:00 2010 5c Adding a line to a given graph can help a lot
27:46 2011B 1d Using IVT to show functions are equal (a great technique!)
29:24 2017 2d Paying attention to the given information!
30:20 2017 6 Just pointing out all the different representations!
31:01 2018 3d Definition of a POI; be confident!
32:07 2019 1c Knowing the best strategy for absolute maximum
33:56 2021 2b Considering position before deciding; don’t be afraid!

#apcalculus #apcalc #apfrq #APexam