![S_{n}=\frac{n}{2} [2a+(n-1)d]](/tpl/images/0705/5708/71836.png)
Find the sum of the first six terms of the sequence.
S6 = ⇒ 84...
Mathematics, 14.07.2020 19:01 andrespeerman
Find the sum of the first six terms of the sequence.
S6 = ⇒ 84
Answers: 1
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