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化分指数幂为根式时,学生常常习惯于一开始就直接利用分指数幂的定义,立即转化为根式。如 2~(-1/2)=1/(2~(1/2))=1/(2~(1/2))·(2~(1/2))(2~(1/2))·(2~(1/2))(2~(1/2))·
When the divisional exponentiation power is rooted, students are often accustomed to using the definition of the exponential exponentiation directly from the beginning, and immediately turn into the root formula. For example, 2~(-1/2)=1/(2~(1/2))=1/(2~(1/2))(2~(1/2))(2~(1/2) )) (2~(1/2)) (2~(1/2))·