engineering mathematics MCQ #623

If y = sin(x) / (1 + cos(x)), find dy/dx at x = π / 2

engineering mathematics MCQ #623

  1. Question 1

    Q1. If y = sin(x) / (1 + cos(x)), find dy/dx at x = π / 2

    • A) 1 / 2
    • B) 1
    • C) 2
    • D) 1 / 4

    Answer: 1

    Explanation: Using quotient rule, dy/dx = ((1 + cos(x)) d(sin(x))/dx - sin(x) d(1 + cos(x))/dx) / (1 + cos(x))², at x = π / 2, dy/dx = 1