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In an AP: given l= 28, S =144 and there are total 9 terms. Find a.

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asked Feb 2, 2018 in Mathematics by Kundan kumar (49,132 points) ● 34 ● 379 ● 1010
In an AP: given  l= 28, S =144 and there are total 9 terms. Find a.

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answered Feb 2, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
 
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We have, l= 28,S =144 and n = 9

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