Linear and Quadratic Approximations : Taylor Polynomials
http://www.maths.usyd.edu.au/u/UG/JM/MATH1901/Quizzes/quiz8.html
http://tutorial.math.lamar.edu/Classes/CalcI/LinearApproximations.aspx
https://www.youtube.com/watch?v=aar099Xh5W4
improper
http://tutorial.math.lamar.edu/Classes/CalcII/ImproperIntegrals.aspx
http://mathworld.wolfram.com/ImproperIntegral.html
https://www.math.upenn.edu/~ryblair/Math104/papers/Lec3_12Sol.pdf
https://www.youtube.com/watch?v=85-HNJyuyrU
Newton’s Method
http://tutorial.math.lamar.edu/Classes/CalcI/NewtonsMethod.aspx
https://www.youtube.com/watch?v=1uN8cBGVpfs
https://magoosh.com/hs/ap-calculus/2017/ap-calculus-review-newtons-method/