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Question 200009
JEE Mathematics · Medium

Trigonometry: Sum Formulae MCQ

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Sum FormulaeMediumQuestion 200009

Question

sin(A + B) equals:
  1. A
    sin A cos B − cos A sin B
  2. B
    sin A cos B + cos A sin B
    Correct
  3. C
    cos A cos B − sin A sin B
  4. D
    cos A cos B + sin A sin B

Correct answer

sin A cos B + cos A sin B

Explanation

This is the standard sum formula: sin(A + B) = sin A cos B + cos A sin B.

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