A little simpler is to note the identity
cos(x)-sin(x) == sqrt(2) * cos(x + pi/4)
I don't know if this helps ...
Wlodzimierz ABX Skiba wrote:
> > > > (A*x-B)(cosx-sinx)=C> > > This is simplest form of my equation resolved by hand. MathCAD can't> > > help me.
Bye for now,
Mike Andrews.
