TUT0801 QUIZ3

[Huyi Xiong]

Find the Wronskian of the given pair of functions.
\begin{align*}
cost, sint
\end{align*}

\begin{align}
W =
\begin{vmatrix}
cost & sint \\
-sint & cost  \\
\end{vmatrix}
&= cos^2 t - (-sin^2 t)\\
&=1
\end{align}