What are all the solutions to the equation cosine squared x minus sine squared x equals radical 2 over 2 question mark
x equals pi over 8 plus pi times n and x equals 7 times pi over 8 plus pi times n
x equals 3 times pi over 8 plus pi times n and x equals 5 times pi over 8 plus pi times n
x equals pi over 8 plus 2 times pi times n and x equals 7 times pi over 8 plus 2 times pi times n
x equals 3 times pi over 8 plus 2 times pi times n and x equals 5 times pi over 8 plus 2 times pi times n
