5.3. Express the total-spin s = 0 state of two spin- particles given in (5.31) in terms of the states | +n, -n) and [-n, +n), where for a single spin-; particle |+n) = cos =|+z) + e'sin -1-2) 2 2 [-n) = sin NID -I+z) - e'$ cos NIS 1-z)