For some a, b, let
\(f(x)=\left|\begin{array}{ccc} a+\frac{\sin x}{x} & 1 & b \\ a & 1+\frac{\sin x}{x} & b \\ a & 1 & b+\frac{\sin x}{x} \end{array}\right|\), x ≠ 0, \(\lim _{x \rightarrow 0} f(x)=λ+μ a+v b\) Then (λ + μ + v)2 is equal to:
1
25
2
9
3
36
4
16