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Mathematics 21 Online
OpenStudy (anonymous):

Given the geometric sequence where a1 = 4 and the common ratio is 3, what is the domain for n? For this its always greater than one right? for every type of these things?

OpenStudy (anonymous):

These are the options All integers where n ≥ 1 All integers where > 1 All integers where n ≥ 4 All real numbers

OpenStudy (anonymous):

since r is greater than 1, that means integers greater than or equal to 1. it can't be all real numbers, becuase that would include negative nubmers

OpenStudy (anonymous):

ok so greater than or equal to 1 also Given the arithmetic sequence an = 4 − 3(n − 1), what is the domain for n? All integers where n ≥ 1 All integers where n > 1 All integers where n ≤ 4 All integers where n ≥ 4 this is the last one

OpenStudy (anonymous):

same idea as the prior question

OpenStudy (anonymous):

so is it always greater than or equal to?

OpenStudy (anonymous):

if the starting number of a sequnce is 4, if we put n=0, then we get 4, but if we put in a negative n, we would get a value that isn't part of our sequence, so it has to be n is greater than or equal to 1

OpenStudy (anonymous):

ohhhh ok thank you!!

OpenStudy (anonymous):

" if we put n=0, th" if we put n=1, th sorry!

OpenStudy (anonymous):

^_^

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