For a spin-1/2 state, suppose that a given state is | +n >= el-ip) sin(0/2)| + z > + cos(0/ for some θ, φ a) Find [-n> a

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For a spin-1/2 state, suppose that a given state is | +n >= el-ip) sin(0/2)| + z > + cos(0/ for some θ, φ a) Find [-n> and show that <+nl-n> =0 and <-nl-n> =1. b) Calculate <Sz> and ASZ
For a spin-1/2 state, suppose that a given state is I +n >= el-i) sin(0/2) + z > + cos(0/2) – 2 > for some Ө, ф a) Find -n> and show that <+nl-n>=0 and <-nl-n> = 1. b) Calculate <S> and AS,