..I have to find all answers to these on the interval 0-2 pi, I think I'm getting them right but I'm not 100% positive
For the first one I had
and I did
Mr F says: Wrong. You have to factorise:
and on the interval 0-2pi I got
Mr F says: For reasons given above, you're missing solutions.
the second one I have to do
and I got
Mr F advises: Use a different symbol to x. x is already being used in the question. Use w = sin x so that w^2 - 2w - 3 = 0.
and for the interval I got
are there any answers on the interval that I am missing? Mr F says: No.