The answer above is NOT correct. (1 point) If f(x) = 8 sin(6x) arcsin(x), find f' (x). f' (x ) = 48cos(6x)*[1/sqrt(1-x^2)]The answer above is NOT correct. (1 point) If f(x) = 2 arctan(7ex), find f' (x). 14e/(49e^2x^2+1)(1 point) A street light is at the top of a 14.0 ft. tall pole. A man 6.5 ft tall walks away from the pole with a speed of 4.0 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 48 feet from the pole? Your answer: ft/sec Hint: Draw a picture and use similar triangles