From a16a5cb60de8dc8cf3ab8a4be487875de1ff4e71 Mon Sep 17 00:00:00 2001
From: eggy <eggyrules@gmail.com>
Date: Wed, 9 Dec 2020 10:58:50 -0500
Subject: [PATCH] math: pythagorean identity is wrong

---
 docs/mhf4u7.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/mhf4u7.md b/docs/mhf4u7.md
index 8e8868d..7c460c3 100644
--- a/docs/mhf4u7.md
+++ b/docs/mhf4u7.md
@@ -18,7 +18,7 @@ $$A=\frac{r^2\theta}{2}$$
 ### Trigonometric identities
 
 The **Pythagorean identity** relates the radius of a circle to its x and y components.
-$$\sin^2\theta+\cos^2\theta=\tan^2\theta$$
+$$\sin^2\theta+\cos^2\theta=1$$
 
 The **quotient identity** relates the side lengths of a right-angled triangle.
 $$\tan\theta=\frac{\sin\theta}{\cos\theta}$$