Hi folks, 1. The problem statement, all variables and given/known data I don't fully understand the question statement, how is it supposed to be read? Question: Give a formula for the minimizer x* (to be read as x-star) of the function ƒ:ℝn → ℝ, x → ƒ(x) = ||Ax-b||22, where A∈ℝm×n and b∈ℝm are given. You can assume that A has rank n. Justify your answer. 2. Relevant equations How do i read the part where set symbols are mentioned?