engineering mathematics MCQ #4930

The general solution of sin(x) + sin(3x) = 0 is

engineering mathematics MCQ #4930

  1. Question 1

    Q1. The general solution of sin(x) + sin(3x) = 0 is

    • A) nπ/2
    • B) nπ
    • C) nπ/4
    • D) nπ or nπ ± π/4

    Answer: nπ or nπ ± π/4

    Explanation: Use sum-to-product identity, then simplify and solve the resulting equation.