5)

If f(a) = cos(4x), then which of the following is equivalent to f" ( TT ) ? Select one: 0 4 O 0 O -16 O 16 O -4Which of the following is the equation of the tangent line to x) : (63$ | 53:2)3 at x = 0? Select one: 3,! = 15K 3 I(_\\. :1\" \\_J \\_J yzgx-1 C) y=x2+15 C) y=9x+1