10-minute Diagnostic
This is not a test. It measures your current understanding so we can calibrate the first session to your needs more effectively.
Q1
Compute: $$|3-4i|$$
Q2
Eigenvalues of $$A=\begin{pmatrix}2&1\\0&3\end{pmatrix}$$
Q3
Solve: $$y''+y=0$$ (general solution)