How do you verify the identity cos 4x + cos 2x = 2 – 2 sin^2 2x – 2 sin^2 x?
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Question “How do you verify the identity cos 4x + cos 2x = 2 – 2 sin^2 2x – 2 sin^2 x?”
How do you verify the identity cos 4x + cos 2x = 2 – 2 sin^2 2x – 2 sin^2 x?
Answer
Use the trig identification:
Conclusion
Above is the solution for “How do you verify the identity cos 4x + cos 2x = 2 – 2 sin^2 2x – 2 sin^2 x?“. We hope that you find a good answer and gain the knowledge about this topic of trigonometry.