Difference between revisions of "Q-derivative of q-Cosine"
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Revision as of 23:28, 26 June 2016
Theorem
The following formula holds: $$D_q \mathrm{Cos}_q(az) = -a \mathrm{Sin}_q(az),$$ where $D_q$ denotes the q-derivative, $\mathrm{Cos}$ denotes the $q$-Cosine function, and $\mathrm{Sin}$ denotes the $q$-Sine function.
