Which of the following is equivalent to ?

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

Which of the following is equivalent to sin⁡αcos⁡β−cos⁡αsin⁡β\sin\alpha\cos\beta-\cos\alpha\sin\beta? (a) cos⁡(α−β)\cos(\alpha-\beta) (b) −sin⁡(α−β)-\sin(\alpha-\beta) (c) sin⁡(α−β)\sin(\alpha-\beta) (d) sin⁡(α+β)\sin(\alpha+\beta)

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