From 21c8b20e57057410d2a6c435b9fe4fa21f1cb552 Mon Sep 17 00:00:00 2001
From: eggy <eggyrules@gmail.com>
Date: Tue, 22 Sep 2020 21:36:24 -0400
Subject: [PATCH] use c over a and b

---
 docs/sph3u7.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/sph3u7.md b/docs/sph3u7.md
index aebd023..c514a03 100644
--- a/docs/sph3u7.md
+++ b/docs/sph3u7.md
@@ -210,7 +210,7 @@ $$
 The length of resultant vector can then be found using the Pythagorean theorem.
 
 $$
-|\vec{c}|=\sqrt{(a_{x}+b_{x})^2 + (a_{y}+b_{y})^2}
+|\vec{c}|=\sqrt{(c_{x})^2 + (c_{y})^2}
 $$
 
 To find the resultant direction, use inverse tan to calculate the angle of the vector using the lengths of its components.