engineering mathematics MCQ #5563

If tan(x) = 1, then what is the value of tan(2x)?

engineering mathematics MCQ #5563

  1. Question 1

    Q1. If tan(x) = 1, then what is the value of tan(2x)?

    • A) undefined
    • B) 0
    • C) 1
    • D) -1

    Answer: undefined

    Explanation: Using the double angle formula, tan(2x) = 2 tan(x) / (1 - tan²(x)) = 2(1) / (1 - 1²) = 2 / 0, which is undefined.