Which of the following is the correct formula for the sine of a sum?

Practice Questions

Q1
Which of the following is the correct formula for the sine of a sum?
  1. sin(a + b) = sin(a) + sin(b)
  2. sin(a + b) = sin(a)cos(b) + cos(a)sin(b)
  3. sin(a + b) = sin(a)sin(b)
  4. sin(a + b) = cos(a) + cos(b)

Questions & Step-by-Step Solutions

Which of the following is the correct formula for the sine of a sum?
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