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I am having extreme difficulty with my Trigonometery homework.
In particular, When I simplify the expression:
cos2xsin2x-cos2x
I come up with cos2x.
This is obviously incorrect. Where am I going wrong?
In particular, When I simplify the expression:
cos2xsin2x-cos2x
I come up with cos2x.
This is obviously incorrect. Where am I going wrong?