engineering mathematics MCQ #5228

If f(x) = cos(x), what is f(π + x)?

engineering mathematics MCQ #5228

  1. Question 1

    Q1. If f(x) = cos(x), what is f(π + x)?

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

    Answer: -cos(x)

    Explanation: Using the identity cos(π + x) = -cos(x).