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Ayeshaafzal
Group Title
A series is given by the formula
Tn=3+2nn^2
(b) Find n if the nth term is −252.
 one year ago
 one year ago
Ayeshaafzal Group Title
A series is given by the formula Tn=3+2nn^2 (b) Find n if the nth term is −252.
 one year ago
 one year ago

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hartnn Group TitleBest ResponseYou've already chosen the best response.0
just plug in Tn = 252 then you get a quadratic equation in 'n' can you solve quadratic equations ?
 one year ago

manishsatywali Group TitleBest ResponseYou've already chosen the best response.2
dw:1358754263944:dw
 one year ago

manishsatywali Group TitleBest ResponseYou've already chosen the best response.2
n can't b negative so take positive sign n = 2+32/2 n=17
 one year ago

Ayeshaafzal Group TitleBest ResponseYou've already chosen the best response.0
thnx smarty pants
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
@Ayeshaafzal ,can you work that out by yourself ??
 one year ago

Ayeshaafzal Group TitleBest ResponseYou've already chosen the best response.0
yes but i was confuse about using 2n in quadratic i didnt know we didnt have to use n in it
 one year ago
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