![]() ![]() ![]() In this video we’ll talk about how to know which trig substitution to use. And if you have one of those values underneath a root, or radical, that’s a dead giveaway that you might want to use trigonometric substitution. You want to use trig sub whenever you have one of these values in your integrand: a^2-u^2, a^2+u^2, u^2+a^2, or u^2-a^2. It takes advantage of the relationship between the sides and angles in a right triangle, allowing you to replace a more complicated value in an integral, with simpler associated values from a corresponding right triangle. It’s like u-substitution, integration by parts, or partial fractions. Trigonometric substitution (more affectionately known as trig substitution, or trig sub), is another integration method you can use to simplify integrals.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |