JEE Advanced Mathematics question
The sum of terms of the series
+2·++2·++2·+
is when is even. When is odd, the sum is
Answer: (A)
Solution
When is odd, is even, so the first terms sum to (using the given result with in place of )
=.
The $
See the full step-by-step solution
Create a free account to read the complete working (5 steps), and practise questions like this in a timed test.
Create a free account