In a geometrical progression, the sum of the second and third terms is 6; and the sum of the third and fourth terms is -12....

      

In a geometrical progression, the sum of the second and third terms is 6; and the sum of the third and fourth terms is -12. Find:
a) (i) The first term
(ii) The common ration
b) The sum of number of consecutive terms of an arithmetical progression is -19 ½ ; the first term is 16 ½ ; and the common difference is -3. Find the number of terms.

  

Answers


sharon
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sharon kalunda answered the question on May 6, 2019 at 06:36


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