Trig Sub: Integration with Trigonometric Substitution 2, Single Variable Calculus

(Part 2 of 2; Part 1 here: https://youtu.be/fTDIg4ScBGc) We discuss how to use trig sub to evaluate integrals that contain expressions like x^2 + a^2, x^2 - a^2, and a^2 - x^2. Our focus is on understanding the geometry of the problem. The discussion about domain at the end is usually not relevant--you only need to consider this for definite integrals. Here is how to integrate sec(x) (from the first example): https://youtu.be/Prm3SMYSPPQ #mathematics #calculus #integration #trigonometricsubstitution #calculus2 #techniquesofintegration #definiteintegrals #mathtutorial