From 87ce661558a828f5ddbe6bb21f2b76c3156a8c3f Mon Sep 17 00:00:00 2001
From: Alexander Wang <0x045f@gmail.com>
Date: Wed, 5 Jun 2019 17:16:32 +0000
Subject: [PATCH] Update Unit_4_Physics_Study_Sheet.md

---
 Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md
index cabcf34..02f93af 100644
--- a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
+++ b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
@@ -305,4 +305,5 @@
 - In a parallel circuit, there are also a set of rules where the current, voltage, and resistance follow. The current and voltage rules are swapped in this case.
 - $`I_T = I_1 + I_2 + I_3 \cdots + I_N`$
 - $`V_T = V_1 = V_2 = V_3 \cdots = V_N`$
-- $`R_T = R_1^{-1} + R_2^{-1} + R_3^{-1} \cdots + R_N^{-1})`$ (I think).
\ No newline at end of file
+- $`R_T = R_1^{-1} + R_2^{-1} + R_3^{-1} \cdots + R_N^{-1}`$ (I think).
+- $`R_T = (R_1*R_2)/(R_1 + R_2)`$
\ No newline at end of file