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authorsiveshs <siveshs@gmail.com>2010-07-02 18:39:47 +0000
committerbnewbold <bnewbold@adelie.robocracy.org>2010-07-02 18:39:47 +0000
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@@ -19,7 +19,7 @@ $2.\quad\sin(2x)\cdot\cos(2x) = ?$
Based on the double angle formula,
-$\qquad\sin(2x) = 2\sin(x)\cos(x)$
+$$\qquad\sin(2x) = 2\sin(x)\cos(x)$$
Rearranging,
$$\begin{array}{ccl}