a) The two spin-1 particles are added together to get a quantum state |J=2, M=0⟩, where J and M are the total spin and its z-component. Using the Clebsch-Gordan table, express the coupled basis state |J=2, M=0⟩ explicitly as a sum of the uncoupled basis states |m1, m2⟩.
b) What do the numbers m1 and m2 represent?