solve(a=(((solve(a=b*c/d*c/d*d*c/b*c*d/c^b/d/c/c*d*c*d^c))+(solve(a=b*c/d*c/d*d*c/b*c*d/c^b/d/c/c*d/c*d^c))), f=((a-1)/2))) calculator can't calculate this, give me answer please
what are b, c, d
