engineering mathematics MCQ #5576

The expression sin(x)cos(y) + cos(x)sin(y) simplifies to

engineering mathematics MCQ #5576

  1. Question 1

    Q1. The expression sin(x)cos(y) + cos(x)sin(y) simplifies to

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

    Answer: sin(x + y)

    Explanation: Using the sine sum identity, the expression simplifies to sin(x + y).