3. More about entanglement a) Is this 2-particle state |a) = ½ (| +)1| +)2 − | +)11 −)2 + | −)1| +)2 − 1 −)11 −)₂) entangled? (Explain why or why not.) b) Consider the state |B) = 1 +)₁| +)2 + √⁄ | +)₂1 −)₂ + ¾ | −)₁| +₂ (i) What is the probability that observer #1 measures + 2? (ii) What is the probability that BOTH observers measure + +2/? (iii) Finally, what is the probability that observers 1 and 2 get "opposite" measurements of Sz? For each of the above, explain your reasoning, don't just write down an answer.

3. More about entanglement a) Is this 2-particle state |a) = ½ (| +)1| +)2 − | +)11 −)2 + | −)1| +)2 − 1 −)11 −)₂) entangled? (Explain why or why not.) b) Consider the state |B) = 1 +)₁| +)2 + √⁄ | +)₂1 −)₂ + ¾ | −)₁| +₂ (i) What is the probability that observer #1 measures + 2? (ii) What is the probability that BOTH observers measure + +2/? (iii) Finally, what is the probability that observers 1 and 2 get "opposite" measurements of Sz? For each of the above, explain your reasoning, don't just write down an answer.