September 2018 1 27 Report

wyznacz liczbę n wyrazów ciągu arytmetycznego , wiedząc że: a) a1=5 an=61 r=7 b) a1=-27 an=15 r=3,5 c) a1=2,3 an=48,8 r=3,1 d) a1=2²₃ an=33¹₃ r=1¹₃


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