r3ugruf8ohanela r3ugruf8ohanela 24-11-2016 Mathematics contestada If the nth partial sum of a sequence an is given by (will attach in a sec!!) then what does an equal? a. 8 + 14 + 20 + 26 + ... + 6n + 2 b. 6n + 2 c. 8 + 10 + 12 + 6n + 2 d. 6n *** please explain cuz i don't understand this AT ALL! :(