Asked by Elvis
The third and fourth of a geometric progression are 4 and 8 respectively. Find the first and the common
Answers
Answered by
Steve
clearly, r = 8/4 = 2
so, ar^2=4
a=1
The sequence is 1,2,4,8,16,...
so, ar^2=4
a=1
The sequence is 1,2,4,8,16,...
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