From f77d8f68349a772fd5594f72b9c6780eb2f6522e Mon Sep 17 00:00:00 2001
From: eggy <eggyrules@gmail.com>
Date: Fri, 28 May 2021 15:46:11 -0400
Subject: [PATCH] math: Fix cross product equation

---
 docs/mcv4u7.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/mcv4u7.md b/docs/mcv4u7.md
index b6cf4ff..60d5666 100644
--- a/docs/mcv4u7.md
+++ b/docs/mcv4u7.md
@@ -488,11 +488,11 @@ $$
 \vec{v}_1 & \vec{v}_2 & \vec{v}_3
 \end{vmatrix} \\
 \\
-&=\hat{j}\begin{vmatrix}
+&=-\hat{j}\begin{vmatrix}
 \vec{u}_1 & \vec{u}_3 \\
 \vec{v}_1 & \vec{v}_3
 \end{vmatrix}
--\hat{i}\begin{vmatrix}
++\hat{i}\begin{vmatrix}
 \vec{u}_2 & \vec{u}_3 \\
 \vec{v}_2 & \vec{v}_3
 \end{vmatrix}