Question:

For which values of the parameter a ∈ R the following real

Last updated: 8/7/2022

For which values of the parameter a ∈ R the following real

For which values of the parameter a ∈ R the following real quadratic form is positive definite f(x, y, z) = x² + 2xy + 2xy + 2y² + 2ayz +5z²