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RadEn Group TitleBest ResponseYou've already chosen the best response.0
use formula : s= a/(1r) with a=first term r=ratio=u2/u1=u3/u2
 2 years ago

BlizzardofFire Group TitleBest ResponseYou've already chosen the best response.0
huh?
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.1
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(1r)
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
ok, a=1 and r=(1/3)/1 = 1/3 plug in a=1 and r=1/3 to that formula!
 2 years ago

BlizzardofFire Group TitleBest ResponseYou've already chosen the best response.0
soooo its 3/4??
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.1
sorry i did a mistake in the formula it will be a/(1r)
 2 years ago

BlizzardofFire Group TitleBest ResponseYou've already chosen the best response.0
do u do it the same way when the question is 4/3+2/3+1/3...
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
yea, that's right.
 2 years ago

HELLSGUARDIAN Group TitleBest ResponseYou've already chosen the best response.1
yes here the ratio(r) is 1/2 ..
 2 years ago

BlizzardofFire Group TitleBest ResponseYou've already chosen the best response.0
k thx
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
oke, what's answer do u get ?
 2 years ago
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