Asked by Ayomide
If 3, p, q, 24 are consecutive terms of an exponential sequence find the values of p and q hence find the sum of the first seven terms
Answers
Answered by
oobleck
just remember there's a common ratio r. That means that
3r^3 = 24
Now find r, and then
S7 = 3(r^7-1)/(r-1)
3r^3 = 24
Now find r, and then
S7 = 3(r^7-1)/(r-1)
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