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RomMosher:
Help please.
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Sock:
whats up?
minustempo:
For the first one, I see that each time is the previous + 9 can you make an arithmetic sequence formula from it?
RomMosher:
53=17+(53-11)9
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RomMosher:
I think thats how it works
minustempo:
So we want to make a general formula It's on the second screenshot you sent a_n = a_1 + (n-1)*d we know the first term is 17 common difference is 9, so d = 9 so a_n = 17 + (n-1)*9
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