Precalculus series unit and convergence/divergence

Hi David,

Thank you for sharing your thoughts on how our Pre-Calculus content could be improved. I will be sure to pass this feedback along to the appropriate team so we can discuss it. As we grow and expand, we’re continuing to add new content to offer a better education at Khan Academy. Investing more heavily in the content team is actually one of our major initiatives.

Warm regards,

Thanks!