Question

if the sum of 2,5,8,....is 57 then find the number of terms​

Answer 1

Answer:

Now we are given that the sum of the first 2n terms of the AP 2,5,8 .....is equal to the sum of the first n terms of the AP 57,59,61.... So, Hence the value of n is 11.

Answer 2

Answer:

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