diff --git a/education/math/MATH1220 (calc II)/Integration with Trig Identities.md b/education/math/MATH1220 (calc II)/Integration with Trig Identities.md index 332135a..9639429 100644 --- a/education/math/MATH1220 (calc II)/Integration with Trig Identities.md +++ b/education/math/MATH1220 (calc II)/Integration with Trig Identities.md @@ -34,7 +34,6 @@ This enables us to make use of **substitution** to simplify many integrals. - $x = a\tan \theta$ - $dx = a \sec^2\theta d\theta$ - for $-\frac{\pi}{2} < \theta < \frac{\pi}{2}$ - # Examples > Evaluate the integral $\int\frac{3}{4+x^2}dx$ 1. Move the constant coefficient out of the integral: