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用构造几何图形的方法解代数题,既新颖别致,又直观形象.请看下面几例. 例1 计算:19961997×19971996-19961996×19971997.
Solving algebraic problems using the method of constructing geometrical figures is novel and unique, and intuitive. Look at the following examples. Example 1 Calculation: 19961997×19971996-19961996×19971997.