From 5695b3f59b6cd1070589a5e939c181743a65878e Mon Sep 17 00:00:00 2001 From: siveshs Date: Fri, 2 Jul 2010 17:13:36 +0000 Subject: still testing --- Fourier Series.page | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Fourier Series.page') diff --git a/Fourier Series.page b/Fourier Series.page index 8d68997..afa4c0a 100644 --- a/Fourier Series.page +++ b/Fourier Series.page @@ -5,7 +5,7 @@ We first begin with a few basic identities on the size of sets. Show that the se ##Why Fourier series is plausible? To show that Fourier series is plausible, let us consider some arbitrary trignometric functions and see if it is possible to express them as the sum of sines and cosines: -$**1.\quad\sin^2(x) = ?**$ +$1.\quad\sin^2(x) = ?$ Based on the double angle formula, @@ -15,7 +15,7 @@ Rearranging, $\qquad\sin^2(x) = \frac{1-\cos(2x)}{2}$ -$**2.\quad\sin(2x)\cdot\cos(2x) = ?**$ +$2.\quad\sin(2x)\cdot\cos(2x) = ?$ Based on the double angle formula, -- cgit v1.2.3