JEE Main 2019 · 12 Jan · Shift I

JEE Main 2019 Mathematics question on Inverse Trigonometric Functions

Considering only the principal values of inverse functions, the set A={x≥0:tan⁡−1(2x)+tan⁡−1(3x)=π4}A = \left\{x \geq 0: \tan^{-1}(2x) + \tan^{-1}(3x) = \dfrac{\pi}{4}\right\}
  1. A.
    is an empty set
  2. B.
    is a singleton
  3. C.
    contains more than two elements
  4. D.
    contains two elements
Show answer

Correct option: B

[JEE Main 2019 · 12 Jan · Shift I]

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