Q23. a spin-half particle is in a linear superposition 0.8t)+0.6) of its spin-up and spin- down states. if and are the eigenstates if o, then what is the expect

Q23. A spin-half particle is in a linear superposition 0.8T)+0.6) of its spin-up and spin- down states. If and are the eigenstates if o, then what is the expectation value up to one decimal place, of the operatorI0o, +50,? Here, symbols have their usual meanings.