对有理数乘法法则有点疑问.几个不等于0的有理数相乘,积的符号有负因数个数决定,负因数个数如果是偶数个,积为正,负因数个数为奇数个,积为负.对这一法则我有些疑问,几个不等于0的有理数
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![对有理数乘法法则有点疑问.几个不等于0的有理数相乘,积的符号有负因数个数决定,负因数个数如果是偶数个,积为正,负因数个数为奇数个,积为负.对这一法则我有些疑问,几个不等于0的有理数](/uploads/image/z/252069-69-9.jpg?t=%E5%AF%B9%E6%9C%89%E7%90%86%E6%95%B0%E4%B9%98%E6%B3%95%E6%B3%95%E5%88%99%E6%9C%89%E7%82%B9%E7%96%91%E9%97%AE.%E5%87%A0%E4%B8%AA%E4%B8%8D%E7%AD%89%E4%BA%8E0%E7%9A%84%E6%9C%89%E7%90%86%E6%95%B0%E7%9B%B8%E4%B9%98%2C%E7%A7%AF%E7%9A%84%E7%AC%A6%E5%8F%B7%E6%9C%89%E8%B4%9F%E5%9B%A0%E6%95%B0%E4%B8%AA%E6%95%B0%E5%86%B3%E5%AE%9A%2C%E8%B4%9F%E5%9B%A0%E6%95%B0%E4%B8%AA%E6%95%B0%E5%A6%82%E6%9E%9C%E6%98%AF%E5%81%B6%E6%95%B0%E4%B8%AA%2C%E7%A7%AF%E4%B8%BA%E6%AD%A3%2C%E8%B4%9F%E5%9B%A0%E6%95%B0%E4%B8%AA%E6%95%B0%E4%B8%BA%E5%A5%87%E6%95%B0%E4%B8%AA%2C%E7%A7%AF%E4%B8%BA%E8%B4%9F.%E5%AF%B9%E8%BF%99%E4%B8%80%E6%B3%95%E5%88%99%E6%88%91%E6%9C%89%E4%BA%9B%E7%96%91%E9%97%AE%2C%E5%87%A0%E4%B8%AA%E4%B8%8D%E7%AD%89%E4%BA%8E0%E7%9A%84%E6%9C%89%E7%90%86%E6%95%B0)
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