Question: A spin 1/2 particle is in a linear superposition 0.8 (arrow up) +0.6 (arrow down) of its spin up and spin down states. If

A spin 1/2 particle is in a linear superposition 0.8 (arrow up)

A spin 1/2 particle is in a linear superposition 0.8 (arrow up) +0.6 (arrow down) of its spin up and spin down states. If arrow up and arrow down are eigenstates of sigma2 then what is the expectation value to one decimal place, of the operator 10 sigma(2) +5 sigmaX ?

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