I did a question where $\dfrac{dy}{dx} = \dfrac{3\cos t}{-8\sin2t}$
and I checked the mark scheme and they had simplified to $-\dfrac{3}{16} \csc t$
I was confused because I though it wasn't possibly to simplify because there's the cos with one t and sin with two ts.
Do I have to use the double angle formula to get to this answer or is there another way?
