i have tried to use a math program, and the graph looks like this, the red dot are the roots. I think there so many of them
Hello pacmanI can't see how to find the complete solution yet, but the most likely approach is probably to use on the RHS and say:
Now use on each side:
or
So that, at least, gives some solutions:
But what happens next with the remaining expression, I'm not sure. You could use and then remove the factor from both sides to get:
(which doesn't give any more answers that we haven't already got from ), or:
which you could then express simply in terms of , but it would be pretty horrendous!
Grandad