Jika f(x)=sin 2 x , maka lim _(h -> 0) (f(x+(h)/(2))-2

Jika f(x)=sin 2 x , maka lim _(h -> 0) (f(x+(h)/(2))-2 f(x)+f(x-(h)/(2)))/(h^(2))=... (A) 2 sin 2 x (D) -sin 2 x (B) sin 2 x (E) -2 sin 2 x (C) 0