Asked by Newman
The second and fourth terms of Geometric progression are 9 and 4 respectively. Find the common ratio and the first term
Answers
Answered by
oobleck
ar = 9
ar^3 = 4
so, r^2 = 4/9
r = 2/3
so, a = 9/(2/3) = 27/2
ar^3 = 4
so, r^2 = 4/9
r = 2/3
so, a = 9/(2/3) = 27/2
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