Calculate h cfædrwhere f(x, y) = hxy (x2 + y2)2 ,y2 x2 2(x2 + y2)2 ifor (x, y) 6= (0 ,0) and cis any positively oriented simple closed smooth curve that encloses the origin. [hint: fis not defined at the origin. ].

What are two basic questions you should ask yourself when contemplating career choices? a. what do i enjoy doing, and what do i hate doing? b. what are my least favorite subjects, and what do i do in my spare time? c. how do i discover what i like, and what do i talk about a lot? d. what do i enjoy doing, and what subjects do i like?