(sin^2 x - cox^2 x) / (sin^2 x - sin x cos x)?
It has been too long since I did trig. Can you do this like algebra (i.e. difference of squares)?
(sin x - cos x) (sin x + cos x) / sin x (sin x - cos x)
(sin x + cos x) / sin x
1 + cot x
Is this legal in trig? How would you simplify the original function? Thanks in advance!