Asked by Naz
Find G1 in geometric progression for which the sum of 1st two terms is -4 and the fifth term is 4 times the third term. If the common ratio is postive
Answers
Answered by
oobleck
a(r^2-1)/(r-1) = -4
ar^4 = 4*ar^2
Now solve for r
Hint: divide to eliminate a, then solve for r.
ar^4 = 4*ar^2
Now solve for r
Hint: divide to eliminate a, then solve for r.
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