From 7d41a7fc94c7c31cd62350f312e539c4bcfae981 Mon Sep 17 00:00:00 2001 From: arc Date: Wed, 3 Sep 2025 12:44:06 -0600 Subject: [PATCH] vault backup: 2025-09-03 12:44:06 --- .../MATH1220 (calc II)/Integration with Trig Identities.md | 5 +++++ 1 file changed, 5 insertions(+) create mode 100644 education/math/MATH1220 (calc II)/Integration with Trig Identities.md diff --git a/education/math/MATH1220 (calc II)/Integration with Trig Identities.md b/education/math/MATH1220 (calc II)/Integration with Trig Identities.md new file mode 100644 index 0000000..3a4261d --- /dev/null +++ b/education/math/MATH1220 (calc II)/Integration with Trig Identities.md @@ -0,0 +1,5 @@ +The below integration makes use of the following trig identities: +1. The Pythagorean identity: $\sin^2(x) + \cos^2(x) = 1$ +2. The derivative of sine: $\frac{d}{dx}sin(x) = cos(x)$ +3. The derivative of cosine: $\dfrac{d}{dx} \cos(x) = -\sin(x)$ +$$ \cos^2(x) = \frac{}