Report copyright - ﻂﻠﺘﺨﻣداﺪﻋا - math.du.ac.irmath.du.ac.ir/wp-content/uploads/sites/10/2016/11/tamrin-dr... · zs = z +z٢+::: +zn+١ s zs = ١ zn+١ =) s = ١ zn+١ ١ z ﺪﯿﻫدنﺎﺸﻧ:ﻦﯾﺮﻤﺗ
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