- What is the derivative of arctan(y/x) with respect to x once and then with respect to y?

Discover Questions

Does life exist beyond Earth? Terence...It worked. Thank you so very much!!!? A certain lens focuses light from an object 2.55 m away as an image 46.2 cm on the other side of the lens. What is its focal length? What is the formula for the area of a cylinder? How to determine if cos(225degrees) is greater than zero, less than zero etc..?