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    Real analysis

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    1-Show that if sum a_n converges absolutely then sum a^2_n also converges absolutely.Does this proposition hold without absolute converge.

    2-if sum a_n converges and a_n>=0 can we conclude anything about sum of sqrt a_n?

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    https://brainmass.com/math/real-analysis/26940

    Solution Summary

    This is a proof regarding absolute convergence.

    $2.49

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