函数的定义域与对应法则;定义域与对应法则才称为相同的函数y=(x^2-1)/(x-1)y=x+1y=(x^2-1)/(x-1)=x+1 (x不等于1)由定义域与对应法则才称为相同的函数,则y=(x^2-1)/(x-1)和y=x+1的定义域不同,所以他们不是
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![函数的定义域与对应法则;定义域与对应法则才称为相同的函数y=(x^2-1)/(x-1)y=x+1y=(x^2-1)/(x-1)=x+1 (x不等于1)由定义域与对应法则才称为相同的函数,则y=(x^2-1)/(x-1)和y=x+1的定义域不同,所以他们不是](/uploads/image/z/1265571-27-1.jpg?t=%E5%87%BD%E6%95%B0%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%8E%E5%AF%B9%E5%BA%94%E6%B3%95%E5%88%99%3B%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%8E%E5%AF%B9%E5%BA%94%E6%B3%95%E5%88%99%E6%89%8D%E7%A7%B0%E4%B8%BA%E7%9B%B8%E5%90%8C%E7%9A%84%E5%87%BD%E6%95%B0y%3D%28x%5E2-1%29%2F%28x-1%29y%3Dx%2B1y%3D%28x%5E2-1%29%2F%28x-1%29%3Dx%2B1+%28x%E4%B8%8D%E7%AD%89%E4%BA%8E1%29%E7%94%B1%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%8E%E5%AF%B9%E5%BA%94%E6%B3%95%E5%88%99%E6%89%8D%E7%A7%B0%E4%B8%BA%E7%9B%B8%E5%90%8C%E7%9A%84%E5%87%BD%E6%95%B0%2C%E5%88%99y%3D%28x%5E2-1%29%2F%28x-1%29%E5%92%8Cy%3Dx%2B1%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%8D%E5%90%8C%2C%E6%89%80%E4%BB%A5%E4%BB%96%E4%BB%AC%E4%B8%8D%E6%98%AF)
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