Integral of sqrt(x^2-1)/x^4 with trig substitution

Learn how to do the integral of sqrt(x^2-1)/x^4 with trigonometric substitution. This is a very common calculus 2 integration homework problem (from James Stewart's single variable calculus textbook). See the previous video:    • You’re Doing Your Calculus Homework Wrong!   Why we dont need the absolute value when we do trig sub    • Why don't we need the absolute value when ...   Remember these integrals:    • Remember these integrals for calculus 2   How to choose the "u"    • u substitution: how to choose the "u"   ----------------------------------------------------------------------- Want more practice? Get my calculus practice quizzes on Patreon! Calculus 1 👉   / 1703815   Calculus 2 👉   / 1716951   ----------------------------------------------------------------------- #calculus #bprpcalculus #apcalculus #mathtutorials #math