In this article we will learn about Transformation
- SinC+SinD= 2Sin(C+D/2)Cos(C-D/2)
- SinC-SinD= 2Cos(C+D/2)Sin(C-D/2)
- CosC+CosD= 2Cos(C+D/2)Cos(C-D/2)
- CosC-CosD= 2Sin(C-D/2)Sin(D-C/2)
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