20) Find the x-intercepts of this function over the interval o , f(x) =20sin(2x) cos(2x) -3. Hint: Use a double angle identity first to make the equation easier to solve. A) x = arcsin , * = arcsin + * 10 1 B) x= - arcsin - arcsin 4 10 4 4 10 C) x = - arcsin X=1- - arcsin 10 10 D) x= - arcsin + - arcsin 8/ w 4 10 4 4 E) x= - arcsin *=X- - arcsin 4 4 F) None of the above