diff options
| -rw-r--r-- | Fourier Series.page | 4 |
1 files 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?</b> 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, |