trying to fix integrals

1 files changed, 2 insertions, 2 deletions

diff --git a/Problem Set 1.page b/Problem Set 1.page
index 7457222..7df1501 100644
--- a/Problem Set 1.page
+++ b/Problem Set 1.page
@@ -29,6 +29,6 @@ $\int_0^{2\pi} \sin^4(x) dx = \frac{3 \pi}{4} $
 (Hint: write out the exponential fourier expansion of $\sin^4(x)$.)
 
 3. Compute the exponential Fourier coefficients of $\sin^2(x)$:  
-$a_n = \frac{1}{\sqrt(2\pi)} \int_0^{2\pi} sin^2(x) e^{-inx} dx $  
+$a_n = \frac{1}{\sqrt(2\pi)} \int_0^{2\pi} sin^2(x) e^{-inx} dx$  
 and use this to show that  
-$\int_0^{2\pi} |\sin^2(x)|^2 dx = \sum |a_n|^2 $  
+$\int_0^{2\pi} |\sin^2(x)|^2 dx = \sum |a_n|^2$