engineering mathematics MCQ #4953

Solve: sin(2x) = sin(x)

engineering mathematics MCQ #4953

  1. Question 1

    Q1. Solve: sin(2x) = sin(x)

    • A) 2nπ or nπ + (-1)^n π/3
    • B) nπ or 2nπ ± π/3
    • C) 2nπ/3 or nπ
    • D) nπ or 2nπ/3

    Answer: 2nπ or nπ + (-1)^n π/3

    Explanation: Using the identity sin(a) = sin(b), we get 2x = nπ + (-1)^n x, simplifying to the given solutions.