等差数列5,8,11...与等差数列3,8,13...都有100项,则这两个数列相同的项共有几项?
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![等差数列5,8,11...与等差数列3,8,13...都有100项,则这两个数列相同的项共有几项?](/uploads/image/z/8816290-34-0.jpg?t=%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%975%2C8%2C11...%E4%B8%8E%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%973%2C8%2C13...%E9%83%BD%E6%9C%89100%E9%A1%B9%2C%E5%88%99%E8%BF%99%E4%B8%A4%E4%B8%AA%E6%95%B0%E5%88%97%E7%9B%B8%E5%90%8C%E7%9A%84%E9%A1%B9%E5%85%B1%E6%9C%89%E5%87%A0%E9%A1%B9%3F)
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等差数列5,8,11...与等差数列3,8,13...都有100项,则这两个数列相同的项共有几项?
等差数列5,8,11...与等差数列3,8,13...都有100项,则这两个数列相同的项共有几项?
等差数列5,8,11...与等差数列3,8,13...都有100项,则这两个数列相同的项共有几项?
第一个数列可写为3x+2,第二个数列可写为5x-2
然后.
最后(其实多写一点找规律就行了)大概17个