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2,7, 12....are in Ap find the sum of 12 terms |
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Answer» HERE IS YOUR ANSWER. A= 2,D=5 Sn=n/2 (2A+(n-1)d) =12/2 (2×2+11×5) =6 (4+55) =6 (59) =354. MARK ME BRAINLIEST |
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