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Deepak Bora
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Asked: 2020-07-26T19:40:54+05:30 In:

Find the common difference of the Arithmetic Progression (A.P.) 1/a ,(3-a)/3a ,(3-2a)/3a ,…….(a≠0)

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CBSE 10th Class past year question paper

Year 2019

SET 1, Code Number- 30/2/1

Question number – 3

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    1 Answer

    1. Newbie
      This answer was edited.

      A.P is  1/ a, 3 -a /3a, 3 -2a/ 3a

      Common difference= second term- first term

      = { ( 3 – a ) / 3a } – 1/a

      = ( 3 – a – 3 )  / 3a

      = -1/3

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