= 
[ 2a₁ + (n - 1)d ], thus
= 
[ (2 × - 74) + (19 × - 3) ]Find sn for the given arithmetic series.
a1 = –74, d = –3, n = 20...
Mathematics, 10.09.2019 23:30 Drellibus70011
Find sn for the given arithmetic series.
a1 = –74, d = –3, n = 20
Answers: 1
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