engineering mathematics MCQ #760

If y = tan(2x), then dy/dx = ?

engineering mathematics MCQ #760

  1. Question 1

    Q1. If y = tan(2x), then dy/dx = ?

    • A) 2 sec²(2x)
    • B) sec²(2x)
    • C) -2 sec²(2x)
    • D) -sec²(2x)

    Answer: 2 sec²(2x)

    Explanation: Using chain rule, dy/dx = d(tan(2x))/dx = sec²(2x) * d(2x)/dx = sec²(2x) * 2 = 2 sec²(2x).