I would like to solve easily this equation with maple.
When i use solve or isolate functions, i have a result with arctan function.
"sol := solve(a*cos(gamma)+b*sin(gamma)+c, gamma):
It is good but i would like solutions with arccos.
In other words, i would like to have these calculations :
gamma=-psi -/+ arccos(c/sqrt(a²+b²))
Is there a possibility to lead this calculation automatically with maple? For example, is it possible to force isolate function to seek for this kind of solution.
Thanks a lot for your help