Find the 20^(t h)term of the series 2xx4...

Find the `20^(t h)`term of the series `2xx4+4xx6+6xx8+dotdotdot+n`terms.

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The correct Answer is:

`1680`

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MODERN PUBLICATION-SEQUENCES AND SERIES-MISCELLANEOUS EXERCISE ON CHAPTER 30

Find the 20^(t h)term of the series 2xx4+4xx6+6xx8+dotdotdot+nterms.
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