From 5d18df523625ace65722eb21c36397e9f377c77c Mon Sep 17 00:00:00 2001 From: zleyyij <75810274+zleyyij@users.noreply.github.com> Date: Mon, 9 Sep 2024 10:42:51 -0600 Subject: [PATCH] vault backup: 2024-09-09 10:42:51 --- education/math/MATH1060 (trig)/The Unit Circle.md | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/education/math/MATH1060 (trig)/The Unit Circle.md b/education/math/MATH1060 (trig)/The Unit Circle.md index a09c16e..4feaa77 100644 --- a/education/math/MATH1060 (trig)/The Unit Circle.md +++ b/education/math/MATH1060 (trig)/The Unit Circle.md @@ -7,7 +7,12 @@ Sine and cosine can be used to find the coordinates of specific points on the un When sine is positive, the $y$ value is positive. When $x$ is positive, the cosine is positive. -$$ cos\ +$$ cos(\theta) = x $$ +$$ sin(\theta) = y $$ + +## The Pythagorean Identity +The Pythagorean identity expresses the Pythagorean theorem in terms of trigonometric functions. It's a basic relation between the sine and cosine functions. +$$ sin^2 \theta + cos^2 \theta = 1 $$ # Definitions