If l = 28 , S = 144 and there are total 9 terms then find a
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here is ur answer.....!!☺☺
look out ^...there isn't answer....
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s = n/2 (a + l)
144 = 9/2 (a + 28)
144*2/9 = a + 28
32 = a + 28
a = 4
144 = 9/2 (a + 28)
144*2/9 = a + 28
32 = a + 28
a = 4
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