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a~2/b~2=c/d型的平面几何题,一般是较复杂的线段比例式,由于求证式两边非同次幂,常使学生感到棘手。本义举例说明此类题目的几种思考和分析途径,供参考。
The a~2/b~2=c/d plane geometry problems are generally more complex line scales. Because the two sides of the verification type are not the same power, they often make students feel intractable. The original meanings illustrate several ways of thinking and analyzing such topics for reference.