We have not discussed methods by which systems of first-order differential equations can be solved. Nevertheless, systems such as:
(dx) /(dt) = -λ₁x
(dy) /(dt) = λ₁x - λ₂y
(dz) /(dt) = _______
What is the missing term in the system?
a) λ₁z
b) -λ₁z
c) λ₂z
d) -λ₂z