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| 1. |
Nth tearm of an ap is 2n+1 and find the sum of first three terms |
| Answer» If nth term of an A.P = 2n+1then, first term of A.P = 2(1)+1= 2+1= 3then, second term = 2 (2) + 1 = 4 +1 = 5third term = 2 (3) +1 = 6+1 = 7sum of terms = 3+5+7sum of terms = 15 | |