engineering mathematics MCQ #821

The derivative of sin(x)cos(x) is?

engineering mathematics MCQ #821

  1. Question 1

    Q1. The derivative of sin(x)cos(x) is?

    • A) cos²(x) - sin²(x)
    • B) cos²(x) + sin²(x)
    • C) sin(x) + cos(x)
    • D) sin(x) - cos(x)

    Answer: cos²(x) - sin²(x)

    Explanation: Apply the product rule: (sin(x)cos(x))' = (sin(x))'cos(x) + sin(x)(cos(x))' = cos²(x) - sin²(x).