3. Discuss the economic growth of China during the Tang era. How did the process of "import substitution" affect the growth of trade, as well as new technology for producing goods?

The graph of x^2=-2+y+5cosy is shown for y=11 a.) find the derivative dy/dx b.)write an equation to the line tangent to the graph of point p. c.)find the y-coordinate of the graph where the line tangent to the graph at that point is vertical pls. show all your work and explain