Find the common difference of the Arithmetic Progression (A.P.)1 3 a3- – InterviewSolution

1.	Find the common difference of the Arithmetic Progression (A.P.)1 3 a3-2aа, За , За , (а关0)
Answer» Common difference 3-a/3a-1/a=3-a/3a-3/3a=3-a-3/3a=-a/3a=-1/3

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