勾股定理不仅在几何解题中有着广泛的应用，而且在代数证题中也有许多应用．应用勾股定理证明有关的代数题，首先要对有关的代数式进行几何解释，说明它们的几何意义，从而将代数问题转化为几何问题；然后作出相应的几何图形；最后根据几何图形的性质，得出所要求证的结论．下 The Pythagorean theorem not only has a wide range of applications in geometric problem solving, but also has many applications in algebraic proofs. Using the Pythagorean theorem to prove the relevant algebraic problems, we first need to explain the geometrical meanings of the algebraic equations, explain their geometrical meanings, then convert the algebraic problems into geometrical problems; then make the corresponding geometrical figures; finally, according to the nature of the geometrical figures, The conclusion of the required certification. under