Csir net june 2020

Q.T0 Define for (x,y) + (0,0) +y fx.y) = o for (x.y) = (0,0) Which of the following statements are true? Options fis continuous at (0,0) 2 fis bounded in a neighbourhood of (0,0) a fis not bounded in any neighbourhood of (0,0) 4 f has all directional derivatives at (0,0)