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KonradZuseBest ResponseYou've already chosen the best response.1
\[\sum_{0}^{8} (1+(1)^j)\]
 one year ago

liliyBest ResponseYou've already chosen the best response.0
we need to use the formula for progresion. but i dont know how. bec the formula is : n(a sub 1 +a sub n) /2
 one year ago

liliyBest ResponseYou've already chosen the best response.0
but is the zero considered ":a sub 1 or a sub 0,?"
 one year ago

KonradZuseBest ResponseYou've already chosen the best response.1
Idk why you need a formula... unless I'm missing something.. You should be able to just plug in and get your answer...
 one year ago

liliyBest ResponseYou've already chosen the best response.0
the instructions say use th formla
 one year ago

KonradZuseBest ResponseYou've already chosen the best response.1
n should be 8, but not too sure about a, maybe the current #? I haven't done this in awhile :P.
 one year ago

liliyBest ResponseYou've already chosen the best response.0
wait, without the formula the answer is 10?
 one year ago

liliyBest ResponseYou've already chosen the best response.0
hmm so this formula is not giving me that answer. no matter which numbers i put in.
 one year ago
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