sum of all tes of an ap formula
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This question is not clear so I am not able to answer this question.
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sum of all terms of an ap
= n/2 {2a +(n-1)d}
or n/2 (a+l)
where n is the no. of terms
a is the first term
d is the common difference
l is the last term
= n/2 {2a +(n-1)d}
or n/2 (a+l)
where n is the no. of terms
a is the first term
d is the common difference
l is the last term
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