3. Find the equation of the tangent line to the graph of f(x) = arctan(7x) when x = 13 7 a. y = - 4 3 4 tan (7 b. y = 17 3 4 6 4 enoliculavo lin siff of of da of malimis at leal easipong out robot 7 C. V = 6 3 4 d. y = 7 6 * + 13 voY . real meorgong ari no boeu:ad yam icJglupies.onfriggin A 3 6 anoilvion of lo Now 4. What is the derivative of sin '(x) ? a. V1 - x2 b. sid = 1 1- 32 1+x 5. Find y' if sin (xy) = cosy a. 1 + sin xy.1-xy? V1 - x2y? b. -y x + (sin y)