【摘 要】
：
在中学数学中,诸多的公式是在某一约束条件下才成立的,如(a~2)~(1/2)=a(a≥0),a~0=1(a≠0),等等,正是有了约束条件,才需要学生认真地掌握公式的运用范围,并正确地运用到解题
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在中学数学中,诸多的公式是在某一约束条件下才成立的,如(a~2)~(1/2)=a(a≥0),a~0=1(a≠0),等等,正是有了约束条件,才需要学生认真地掌握公式的运用范围,并正确地运用到解题中去。 下面我们通过一些实例,加深对公式中约束条件的认识。
In middle school mathematics, many formulas are established under certain constraints, such as (a~2)~(1/2)=a(a≥0), a~0=1(a≠0), And so on, it is precisely because of the constraints that students are required to carefully grasp the scope of application of the formula and apply it correctly to solve problems. Below, we will deepen our understanding of the constraints in the formula through some examples.
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