The last I checked, most high schoolers don't take Diff Eq classes. https://www.khanacademy.org/math/multivariable-calculus https://www.khanacademy.org/math/mu

The last I checked, most high schoolers don't take Diff Eq classes. https://www.khanacademy.org/math/multivariable-calculus https://www.khanacademy.org/math/multivariable-calculus https://www.khanacademy.org/math/differential-equations https://www.khanacademy.org/math/differential-equations https://www.khanacademy.org/math/linear-algebra https://www.khanacademy.org/math/linear-algebra