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《Studies in College Mathematics》 2018-05
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A Sufficient Condition for a Linear Algebra Problem in the Master Graduate Entrance Examination

FANG Xulian;School of Economics and Management,Zhejiang International Studies University;  
Based on the approach given in paper[1]to a problem of Advanced Mathematics and Linear Algebra,another approach is provided using the quadratic formula.By arguing the general problem of invertibility,based on the new approach,the sufficient condition of invertibility is derived.
【CateGory Index】: O151.21
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