Correct option is A
Given:∑an is a series with non-negative terms, and liman1/n=pUsing Cauchy’s Root Test:Let L=limsupan1/n⎩⎨⎧L<1L>1L=1=>Series converges=>Series diverges=>Test is inconclusiveSince liman1/n=p exists, we apply directly:p<1=>∑an convergesAnswer: (A) p<1
are in HP, then which of the following is/are correct?
are in GP, then consider the following in respect of the equation
is a cube root of unity.
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