Asked by Anonymous
The second term of a GP is 1/2 and the sum ti infinity of the series is 4. Find the first term and and the common ratio of the series.
Answers
Answered by
Steve
ar = 1/2
a/(1-r) = 4
a = 2-√2
r = 1/4 (2+√2)
or
a = 2+√2
r = 14 (2-√2)
a/(1-r) = 4
a = 2-√2
r = 1/4 (2+√2)
or
a = 2+√2
r = 14 (2-√2)
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