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What is the 38th Sum of an AP series 10,7,4... |
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Answer» here, a = 10 d= 7-10 = -3 n = 38 aₙ = a₃₈ now 38 TH term of AP = a₃₈ = a + (n-1) d = 10 + ( 38 - 1) -3 = 10 + 37(3) = 10 + 111 = 121 |
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