Limits:  https://youtu.be/RukDbdP5jFw

computation of limits:  https://youtu.be/D1UMaJsnNIM

limits involving infinity:  https://youtu.be/XmQdWWWVLNE

Integration by parts:https://www.youtube.com/watch?v=FEzEc54YkSs&feature=youtu.be

integration by partial fractions: https://www.youtube.com/watch?v=xrsQMPpLdiM&feature=youtu.be

improper integrals: https://www.youtube.com/watch?v=JQJYCKojcQ0&feature=youtu.be

L'hopital's rule part 1:https://www.youtube.com/watch?v=Yj5_WXqztK0&feature=youtu.be

L'hopital's rule part 2:   https://www.youtube.com/watch?v=u5k0bzARrUw&feature=youtu.be

Logistic Growth: https://www.youtube.com/watch?v=cPf6j1q8yV4&feature=youtu.be