👉 In mathematics, "cosaque" is a term used to describe a complex number that has an imaginary part equal to zero. It can be represented as: cos(θ) = y where θ is the argument of the complex number (in radians), and y is its real part. For example, if we have the complex number cos(2π/3), it represents the angle whose cosine is 1/sqrt(3). Therefore, cos(2π/3) can
