From 45af21054d665ca4eb14021ca067655b56185667 Mon Sep 17 00:00:00 2001 From: siveshs Date: Fri, 2 Jul 2010 17:09:19 +0000 Subject: still testing --- Fourier Series.page | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Fourier Series.page b/Fourier Series.page index 375b855..4cc80d6 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