a) For the angular momentum vector given by L = Lxi + Lyj + Lzk, calculate the [L?, Lx] commutator. b) Ladder operators for angular momentum are given as L+ = Lx + iLy and L_ = Lx iLy. Since Lx and Ly are hermitic, determine whether L_L+\ is hermitic. a) L = L,i + Lyj + L,k ile verilen asal momentum vektr iin, [L, L,] komtatrn hesaplayn. b) Asal momentum iin merdiven ilemcileri L4 = Lx + iLy ve L = Lx- iL, olarak veriliyor. Lx ve L, hermitik olduuna gre, L L4'nin hermitik olup olmadn belirleyiniz.