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One useful way of defining sequences is by a recursion relation. Many recurrence relations can be transformed to some know sequences, say GP or sometimes nth term can be found by algebraic jugglery Let {a_(n)} + 2a_(2) + 3a_(3) + …+ (n-1) a_(n-1) = n^(2) a_(n). n ge 2 The value of a_(786)is

Answer»

`(1)/(789)`
`(1)/(393)`
`(2)/(393)`
`(1)/(1572)`

ANSWER :4


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