JEE Mathematics · Medium

Trigonometry: Equation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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EquationMediumQuestion 200025

Question

The number of solutions of 2 sin x = 1 in [0, 2π] is:
  1. A
    1
  2. B
    2
    Correct
  3. C
    3
  4. D
    4

Correct answer

2

Explanation

sin x = 1/2 → x = π/6 and x = 5π/6 in [0, 2π]. These are 2 solutions.