Line integrals on vector fields - help formulate? How to deal with the j on the right of F(x,y) when converting to P and Q? And how would one expand F.dr in the second part? Thanks!

yiuxj. Let Fen, y) = $2 + ya J on the set D = {(m) | (stay) ae (0,0)}. (3.) Show that the condition erg/ax = BID/By holds on D, where P(:r,y) and Q(:r,y) are the i and j components of F, respectively. b Show that F dr 0, where C is the unit circle m2 + 2 = 1 traversed counterclock- y a C wise- Why does this Show that F is not conservative in D