differentiation - doubt with the answer

[civic sun]

I wrote cot(2x) in terms of tan x

And i differentiated y wrt x using product rule

[civic sun]

I simplified this in terms of sinx and cosx and i got the same thing as my answer

[civic sun]

.

The answer is sin(4x)-8xsinx/4sin(2x)cos²z

I think it's a printing mistake and that the 8xsinx term should be 8xsin²x

Oh the image didn't even show up bruh

[earnest badge]

im getting same answer u got

[earnest badge]

any other question?

[civic sun]

Nu