Let z = x + iy. (a) Find Re(cos z) and Im(cosz). (b) Show that Re(cos z) and Im(cos z) are harmonic functions. (c) Find
Posted: Tue Jun 07, 2022 6:08 am
Let z = x + iy. (a) Find Re(cos z) and Im(cosz). (b) Show that Re(cos z) and Im(cos z) are harmonic functions. (c) Find the conjugate harmonic function of Re(cos z).