How do you simplify #(sin² t - cos² t sin² t) / sin² t#?
First off, I am lead to believe the "t" outside the denominator is a mistake. Secondly, for my convenience I changed "t" to "x".
1) Since in this equation the numerator has a subtraction we could and will split the numerator.
2) Now that the numerator is split we can simplify
3) This leaves us with