How do you verify the identity: cos2x− sin2x= 1 − 2sin2x

1.	How do you verify the identity: cos2x− sin2x= 1 − 2sin2x
Answer» The identitycos²x− sin²x= 1 − 2sin²xis verified. Trigonometric identities are equations that relate different trigonometric functions using different mathematical operations.

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