Fix benifit -> benefit typo in Serway and Jewett v4's 21.35.

diff --git a/latex/problems/Serway_and_Jewett_4/problem21.35.tex b/latex/problems/Serway_and_Jewett_4/problem21.35.tex
index 12caf8963073027c8f10d488628eb25432083564..4f485050c9937386529a8d79da938dd68d21e381 100644 (file)
--- a/latex/problems/Serway_and_Jewett_4/problem21.35.tex
+++ b/latex/problems/Serway_and_Jewett_4/problem21.35.tex
@@ -147,7 +147,7 @@ want to double check your algebra, I work the solution out
 symbolically in my linear algebra introduction in traditional equation
 format as well as in matrix format.
 
-The benifit of the linear algebra is that most graphing calculators
+The benefit of the linear algebra is that most graphing calculators
 can do the matrix inversion for you.  On the TI-89, you can do
 \begin{align}
 &[-1,1,1;8,6,0;8,0,4] \rightarrow A \\