高中数学课程标准指出:高中数学课程要发展学生的智力和创新意识.我们在数学学习、解题的过程中,若能从新的角度、新的学科分支、新的领域去寻找新的解题方法,会更好地促进学生智力的发展和创新意识的形成的.下面给出一道数学第二册(上)6.3不等式的证明中例2的新证法.已知a,b,m The high school mathematics curriculum standard points out that the high school mathematics curriculum should develop the students’ intelligence and innovation consciousness. We can find new ways to solve problems in the process of mathematics learning and problem solving from new angles, new discipline branches, and new fields. , will better promote the development of students’ intelligence and the formation of innovative consciousness. The following gives a new proof of the second example of Mathematical Second Volume (above) 6.3 inequality. Known a, b, m