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adnanchowdhury
 3 years ago
Best ResponseYou've already chosen the best response.0S = 2a + (n1)d Where a = first number in sequence, n is nth term you are looking for and d is the common difference.

adnanchowdhury
 3 years ago
Best ResponseYou've already chosen the best response.0sorry, it should be: S = n/2( 2a + (n1)d)

Mertsj
 3 years ago
Best ResponseYou've already chosen the best response.1\[s _{n}=\frac{n}{2}(a _{1}+a _{n})\] To find the 24th term use: \[a _{n}=a _{1}+(n1)d=8+(241)6=146\] \[s _{n}=\frac{24}{2}(6+146)\] \[s _{n}=1824\]

Mertsj
 3 years ago
Best ResponseYou've already chosen the best response.1There. I think I finally got it right.
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