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数列是定义在自然数集或其子集上的特殊函数,因此数列具有很多函数的性质.在解数列题时若能充分应用函数的思想和函数的图像与性质,将给我们的解题带来意想不到的效果!下面就举例说明函数思想在数列中的应用.
A sequence is a special function defined on a set of natural numbers or a subset thereof, and so the sequence has many properties of the function. When solving the sequence problem, applying the idea of the function and the image and the nature of the function will bring us the meaning of solving the problem Unexpected effect! The following example illustrates the application of the function in the sequence of ideas.