JEE Advanced 2018 Mathematics question
For any positive integer , define as
=() for all x(0,∞).
(Here, the inverse trigonometric function assumes values in .) Then, which of the following statement(s) is (are) TRUE?
Answer: (D)
Solution
, so the sum telescopes: . (A), (B) Each is defined only on , so and are not defined and these
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