The first term, common difference and last term of an AP are 12, 6 and 252 respectively. Find the sum of all terms of this AP.

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asked Mar 12, 2018 in Mathematics by Golu (37,045 points) 19 145 414

The first term, common difference and last term of an AP are 12, 6 and 252 respectively. Find the sum of all terms of this AP.

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answered Mar 12, 2018 by faiz (82,347 points) 6 6 11
 
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