4. Candace is working on homework with a friend. They're trying to solve for the implicit derivative of the function $2y + 69 = cos(y). Candace nds the answer d_y _ cos(y) 2mg dac x2+ey 7 but her friend tells her that's wrong. (a) (6 points) Find the correct implicit derivative of the function $23; + 674 = cos(y). (b) (3 points) Find the mistake that Candace made when she tried finding the derivative. Put your answer in the box below