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所谓“转化法”就是把一个复杂的、陌生的问题转化为简单的,熟悉的问题来解决的一种数学思想,应用这种数学思想,则会事半功倍,使解法简捷清新.
The so-called “transformation method” is a mathematical idea that transforms a complex, unfamiliar problem into a simple, familiar problem. Applying this mathematical idea will do more with less and make the solution simpler and clearer.