Calculating the ratio: r = 5 - 3 = 2. Substituting these values in the formula for the general term an = a1 + (n-1).r: A12 = 3 + (12-1).2 -> a12 = ...
Calculating the ratio: r = 5 - 3 = 2. Substituting these values in the formula for the general term an = a1 + (n-1).r: A12 = 3 + (12-1).2 -> a12 = 3 + 11.2 -> a12 = 25
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