G, K, and L are collinear
Det[{
{1 – r, v – 1, 1},
{R*Cos[–2*z] + √2*Cos[π/2 – z + θ + (1*π)/4], R*Sin[–2*z] + √2*Sin[π/2 – z + θ + (1*π)/4], 1},
{R*Cos[–2*z] + √1*Cos[π/2 – z + θ + (2*π)/4], R*Sin[–2*z] + √1*Sin[π/2 – z + θ + (2*π)/4], 1}
}] = 0
Det[{
{1 – r, v – 1, 1},
{–Sin[θ – z], Cos[θ – z], ...