s=1-1/3+1/9-...

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s=1-1/3+1/9-...

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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use formula : s= a/(1-r) with a=first term r=ratio=u2/u1=u3/u2
huh?
its a geometric progression with contant ratio(r)=-1/3 and its first term(a) is 1 hence we can use a formula for the sum of this g.p. as a(1-r)

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Other answers:

ok, a=1 and r=(-1/3)/1 = -1/3 plug in a=1 and r=-1/3 to that formula!
soooo its 3/4??
yup
sorry i did a mistake in the formula it will be a/(1-r)
do u do it the same way when the question is 4/3+2/3+1/3...
yea, that's right.
yes here the ratio(r) is 1/2 ..
k thx
oke, what's answer do u get ?

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