Cauchy’s nth root test or Root test : Statement & Proof Infinite Series #Cauchy’s #nth #root #test or #Root #test : #Statement & #Proof #Infinite Series

 Cauchy’s nth root test or Root test :                              

                                                                                                                                               Back

  Statement :                              If Σ un  is a series of positive terms such that lim un1/n =l, then

(a)    Σ un converges if l<1 and (b) Σ un diverges if l>1.

Proof :  



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