the common difference of an A.P., the sum of whose n terms is Sn, is
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Let the common Difference be d
d =( 2Sn - 2na1 )/n ( n - 1)
where a1 is ist term, n is Number of terms and sn is sum of n terms
_______________________________
Let the common Difference be d
d =( 2Sn - 2na1 )/n ( n - 1)
where a1 is ist term, n is Number of terms and sn is sum of n terms
this is not right answer....
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