given e^x(f(x)) + [In(x)(f(x))]^3 + f(x) = 1 and f(a) = 2 find f'(a)

Where I typed f(a) there is a weird circular symbol in the question where (a) is that I don't know what it means so I assume it's just to represent something other than f(x).

given e^x(f(x)) + [In(x)(f(x))]^3 + f(x) = 1 and f(a) = 2 find f'(a)

Where I typed f(a) there is a weird circular symbol in the question where (a) is that I don't know what it means so I assume it's just to represent something other than f(x).