<p>I have a friend who placed out of Calculus II because of his score on the Calc BC exam, but he felt rusty so he decided to take Calculus II in college. He definitely regretted that decision, because not only was it pretty boring and monotonous to him, it was also a lot of work that didn’t really better him. Unless you’re really, really, <em>really</em> not confident in your Calculus ability, I wouldn’t bother retaking the introductory Calculus classes. Multivariable doesn’t even really use any of the more advanced techniques (e.g. trig substitution).</p>
<p>I took multivariable second semester and I ended up with an A-, it’s not really a difficult class relative to Calc II. In addition, there are a lot of resources available online:
[YouTube</a> - MIT’s Channel](<a href=“http://www.youtube.com/user/MIT#g/c/4C4C8A7D06566F38]YouTube”>http://www.youtube.com/user/MIT#g/c/4C4C8A7D06566F38)</p>