Q3 of 102 Page 410

Find the sum of 25 terms of the AP , 2, 3, 4, ….

To Find: The sum of 25 terms of the given AP series.


Sum of n terms of an AP with first term a and common difference d is given by



Here,


a = √2, n = 25, d = √2


= 25 × 13 × √2 = 325√2


Sum of 25 terms is 325√2.


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