Find the simplified value of .

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Find the simplified value of sin⁡(α+β)+sin⁡(α−β)\sin(\alpha+\beta)+\sin(\alpha-\beta). (a) 2cos⁡αsin⁡β2\cos\alpha\sin\beta (b) 2sin⁡αcos⁡β2\sin\alpha\cos\beta (c) 2sin⁡αsin⁡β2\sin\alpha\sin\beta (d) sin⁡αcos⁡β\sin\alpha\cos\beta

Related theory

Browse the problem library