Answer:
s9=-128/2187
Step-by-step explanation:
formula: sn=a(r^n-1)/r-1
> given: a=3/4, r=2/3, n=9
> s9=3/4(2/3^9-1)/2/3-1
> s9=3/4(512/19683)/-1/3
> s9=128/6561/-1/3
> s9=-128/2187
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Answers & Comments
Answer:
s9=-128/2187
Step-by-step explanation:
formula: sn=a(r^n-1)/r-1
> given: a=3/4, r=2/3, n=9
> s9=3/4(2/3^9-1)/2/3-1
> s9=3/4(512/19683)/-1/3
> s9=128/6561/-1/3
> s9=-128/2187
100,50,25,... S6=______