. The series one third minus one half plus one ninth minus one fourth plus StartFraction 1 Over 27 EndFraction minus one eighth plus midline ellipsis plus StartFraction 1 Over 3 Superscript n EndFraction minus StartFraction 1 Over 2 Superscript n EndFraction plus midline ellipsis does not meet one of the conditions of the alternating series test​ (Leibniz's test). Which​ one? b. Use the rearrangement theorem for absolutely convergent series to find the sum of the series in part​ (a).