I believe there are four solutions in this range. An easy way to see this is to graph them. See the attached pdf.
Do you know how to find the other solutions?
I am just wandering how many solution there are to the equation in the title?
The boundary is 0_<X_<360(degrees) (_< meaning less than or equal to sign)
I worked out:
I know this is one solution, but is there any more solutions to this?