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OpenStudy (anonymous):
The formula for a geometric sequence is an=1000(0.5)^n-1. What is the third term of the sequence?
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OpenStudy (apoorvk):
hmm simple enough. put in n=3 in the equation for the nth term, since we need to find the '3rd' term. calculate and enjoy!
OpenStudy (anonymous):
n indicates which term it is. So you replace n with whatever term you want...
OpenStudy (anonymous):
I don't know how to calculate that though.
OpenStudy (anonymous):
Actually is that sequence defined recursively? Do you mean that (n-1) should be all together in brackets?
OpenStudy (apoorvk):
|dw:1335202842349:dw| do you understand now? can you follow up with the last step and post an answer here?
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