求教!定义两种新运算"⊕"与"Θ"定义两种新运算"⊕"与"Θ",满足如下运算法则:对任意的a b ∈R 有a⊕b=ab:aΘb=a-b/(a+b)²+1.设全集U={cㄧc=(a⊕b)+(aΘb),﹣2<a≤b<1,且ab∈Z},
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![求教!定义两种新运算](/uploads/image/z/1788862-22-2.jpg?t=%E6%B1%82%E6%95%99%21%E5%AE%9A%E4%B9%89%E4%B8%A4%E7%A7%8D%E6%96%B0%E8%BF%90%E7%AE%97%22%E2%8A%95%22%E4%B8%8E%22%CE%98%22%E5%AE%9A%E4%B9%89%E4%B8%A4%E7%A7%8D%E6%96%B0%E8%BF%90%E7%AE%97%22%E2%8A%95%22%E4%B8%8E%22%CE%98%22%2C%E6%BB%A1%E8%B6%B3%E5%A6%82%E4%B8%8B%E8%BF%90%E7%AE%97%E6%B3%95%E5%88%99%3A%E5%AF%B9%E4%BB%BB%E6%84%8F%E7%9A%84a+b+%E2%88%88R+%E6%9C%89a%E2%8A%95b%EF%BC%9Dab%EF%BC%9Aa%CE%98b%EF%BC%9Da%EF%BC%8Db%EF%BC%8F%EF%BC%88a%EF%BC%8Bb%EF%BC%89%26%23178%3B%EF%BC%8B1.%E8%AE%BE%E5%85%A8%E9%9B%86U%EF%BC%9D%EF%BD%9Bc%E3%84%A7c%EF%BC%9D%EF%BC%88a%E2%8A%95b%EF%BC%89%EF%BC%8B%EF%BC%88a%CE%98b%EF%BC%89%2C%EF%B9%A32%EF%BC%9Ca%E2%89%A4b%EF%BC%9C1%2C%E4%B8%94ab%E2%88%88Z%7D%2C)
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