Given that are the fourth, sixth and eighth terms of a geometric progression that has a first term which is positive, find the common ratio. but answer is
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Originally Posted by Punch Given that are the fourth, sixth and eighth terms of a geometric progression that has a first term which is positive, find the common ratio. shouldn't it be r^2 instead of 2r but answer is ...
Originally Posted by abhishekkgp ... sorry, but ans still differs from given ans
Hello, Punch! We have: . Equate [4] and [5]: . . . Therefore, the common ratio is: .
Originally Posted by Soroban Hello, Punch! We have: . Equate [4] and [5]: . . . Therefore, the common ratio is: . that was a lot of work, i understood it fully! thanks. but just to point out a minor mistake, you should have wrote: substitute in [5] because there isnt an equation [4]
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