JEE Main 2025 Mathematics question
The sum 1 + 3 + 11 + 25 + 45 + 71 + ..... upto 20 terms, is equal to
Answer: (2)
Solution
Using and summing over 20 terms gives 7240.
The sum 1 + 3 + 11 + 25 + 45 + 71 + ..... upto 20 terms, is equal to
Using and summing over 20 terms gives 7240.