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Rewrite with Only Sin X and Cos X sin⁡3x−cos⁡2x\sin 3 x - \cos 2 x

Question 277

Multiple Choice

Rewrite with only sin x and cos x.
- sin⁡3x−cos⁡2x\sin 3 x - \cos 2 x


A) 2sin⁡xcos⁡2x−sin⁡x+2sin⁡3x+1−2sin⁡2x2 \sin x \cos ^ { 2 } x - \sin x + 2 \sin ^ { 3 } x + 1 - 2 \sin ^ { 2 } x
B) 2sin⁡xcos⁡2x+sin⁡x−2sin⁡3x−1−2sin⁡2x2 \sin x \cos ^ { 2 } x + \sin x - 2 \sin ^ { 3 } x - 1 - 2 \sin ^ { 2 } x
C) 2sin⁡xcos⁡2x+sin⁡x−2sin⁡3x−1+2sin⁡2x2 \sin x \cos ^ { 2 } x + \sin x - 2 \sin ^ { 3 } x - 1 + 2 \sin ^ { 2 } x
D) 2sin⁡xcos⁡2x+sin⁡x−2sin⁡2x−1+2sin⁡2x2 \sin x \cos ^ { 2 } x + \sin x - 2 \sin ^ { 2 } x - 1 + 2 \sin ^ { 2 } x

Correct Answer:

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