engineering mathematics MCQ #5257

The graph of y = cos(x) is reflected about the x-axis. What is the new equation?

engineering mathematics MCQ #5257

  1. Question 1

    Q1. The graph of y = cos(x) is reflected about the x-axis. What is the new equation?

    • A) y = -cos(x)
    • B) y = cos(x)
    • C) y = sin(x)
    • D) y = -sin(x)

    Answer: y = -cos(x)

    Explanation: Reflecting cos(x) about the x-axis gives -cos(x).