14-15

. Question 14 0/1 pt 9 2 0 Details dr dA Let A be the area of a circle with radius r. If - - = 5, find when r = 2. dt Check Answer Question 15 0/1 pt ) 2 0 Details (1) Which is the correct formula for finding the derivative of the product of two functions? O (fg)' = fg'+ gf' o (fg)' = f'+ g' O (fg)' = f'g' (2) Use the correct formula above to find the derivative of the function f(x) = ater. Check