Asked by Anonymous
25,-10,4 evaluate converges
ended up with 10/7, is that right?
ended up with 10/7, is that right?
Answers
Answered by
Reiny
assuming the obvious,
a GS with a = 25 and r = -.4 or -4/10 , and you are adding them.
sum of infinite number of terms = a/(1-r)
= 25/(1+4/10)
= 25 /(14/10)
= 25(10/14)
= 250/14 = 125/7
a GS with a = 25 and r = -.4 or -4/10 , and you are adding them.
sum of infinite number of terms = a/(1-r)
= 25/(1+4/10)
= 25 /(14/10)
= 25(10/14)
= 250/14 = 125/7
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