(b) Show that if I is the m x m identity matrix and E = µ(1), then for all A E Mm we haveµ(A) = EA. Let Mm denote the set of all real matrices with m rows. Let m 2 2, let 1 < l, k < m with l # k, and let c E R. Defineµ : Mm → Mm so that for all A e Mm, the matrix µ(A) is the result of performing the row operation Re + Re + cRk on A.(a) Find an explicit piecewise expression giving the entries of µ(A) in terms of the entries of A E Mm.

a Let A∈Mm we define a map μ:Mm→Mm such that Rl→Rl+cRk ,where 1≤l, k≤m Let us choose arbitrary row…

Let Mm denote the set of all real matrices with m rows. Let m > 2, let 1 < l,k < m with l # k, and let c e R. Define u : Mm → Mm so that for all A € Mm, the matrix µ(A) is the result of performing the row operation Re + Rų + cRx on A. (a) Find an explicit piecewise expression giving the entries of µ(A) in terms of the entries of A e Mm.