doubt
Posted by
Kajol on
Jan 08, 2016; 10:59am
URL: http://discussion-forum.276.s1.nabble.com/doubt-tp7599483.html
Suppose f(x,y) where x and y are real, is a differentiable function satisfying the following properties:
1) f(x+k,y) = f(x,y) + ky;
2) f(x, y+k) = f(x,y) + kx;
3) f(x,0) = m, where m is a constant
Then f(x,y) is given by
(A) m + xy
(B) m+x+y
(C) mxy