Do first five terms of sequence \left\{\frac{1-(-1)^{n}}{n^{3}}\right\}

emancipezN 2021-05-14 Answered
Do first five terms of sequence
{1(1)nn3}
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Expert Answer

ottcomn
Answered 2021-05-15 Author has 97 answers
Given
{1(1)nn3}
{1(1)113}=1(1)1=2
{1(1)223}1(1)8=0
{1(1)333}1(1)27=227
{1(1)443}1(1)64=0
{1(1)553}1(1)125=2125
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