- #1

karush

Gold Member

MHB

- 3,269

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https://www.physicsforums.com/attachments/9064

that was the example but...

\begin{align*}

w(e^x,\cos x)&=\left|\begin{array}{rr}e^x&\cos{x} \\ e^x&-\cos{x} \\ \end{array}\right|\\

&=??\\

&=??

\end{align*}