engineering mathematics MCQ #1546

∫1 / (1 + e^x) dx = ?

engineering mathematics MCQ #1546

  1. Question 1

    Q1. ∫1 / (1 + e^x) dx = ?

    • A) x - ln|1 + e^x| + C
    • B) ln|e^x| - ln|1 + e^x| + C
    • C) ln|1 + e^x| + C
    • D) -ln|1 + e^(-x)| + C

    Answer: x - ln|1 + e^x| + C

    Explanation: Using algebraic manipulation and substitution to simplify the integral.