engineering mathematics MCQ #5566

If tan(x) = 1, what is tan(2x)?

engineering mathematics MCQ #5566

  1. Question 1

    Q1. If tan(x) = 1, what is tan(2x)?

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

    Answer: undefined

    Explanation: Using tan(2x) = 2tan(x) / (1 - tan²(x)), we get tan(2x) = 2 / (1 - 1) which is undefined.