CAT 2019 Slot 1 QA Q17 Functions & Graphs

Question 17 of the Quantitative Ability (QA) section, CAT 2019 Slot 1, with CAT's official answer.

The number of the real roots of the equation 2cos(x(x + 1)) = 2x + 2-x is
  1. A
    0
  2. B
    Infinite
  3. C
    1
  4. D
    2

Answer: (C) 1 Functions & Graphs MCQ

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Same concept in other years

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All 23 Functions & Graphs questions asked since 2017.