10+11+.........+50 sum the series
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1+2+3+4+…..+50 is an Arithmetic Progression,
The sum of 1+2+3+4+………… +n terms is given by the formula
The sum to n terms Sn is given by,
Where n is the number of terms
By substituting n = 50
,
Similarly, for an A.P having the terms
The sum of all the terms is given by
where,
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