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Determine If the Following Is an Identity cos⁡2x−sin⁡2x=1−2sin⁡2x\cos ^ { 2 } x - \sin ^ { 2 } x = 1 - 2 \sin ^ { 2 } x

Question 11

Multiple Choice

Determine if the following is an identity.
- cos⁡2x−sin⁡2x=1−2sin⁡2x\cos ^ { 2 } x - \sin ^ { 2 } x = 1 - 2 \sin ^ { 2 } x


A) Not an identity
B) Identity

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