Can someone help with question 10.
9, and k=1 on the sigma if its blurry to see
#Geometric sequences
vocal plinth
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but its study for my math test so could you give like a hint and not complete answer
im gonna try and get it myself
is 9 or 2 the ratio
fair yoke
is 9 or 2 the ratio
for q10? the ratio is 2
fair yoke
what does the 9 in the sigma notation mean
it's saying sum from k=1 to k=9
vocal plinth
it's saying sum from k=1 to k=9
ah so, sn is all the first 9 added up?
-2555
ok that actually explains alot
so would i use the formula
sn=[t1(1-r^n)]/1-r
fair yoke
so would i use the formula
sn=[t1(1-r^n)]/1-r
yeah
vocal plinth
and for sn i plug in 9 not -2555
safe remnant