1.
Consider the system of linear equations
x+y+z=4μ,x + y + z = 4\mu,

x+2y+2λz=10μ,x + 2y + 2\lambda z = 10\mu,

x+3y+4λ2z=μ2+15,x + 3y + 4\lambda^2 z = \mu^2 + 15,

where λ,μ∈R\lambda, \mu \in \mathbb{R}. Which one of the following statements is NOT correct?