Let fx.)-/1 if lul2x, let f(x)o otherwise. 2. does the directional derivative of fin the direction of (1,10") at the point (0,0) exist? if yes, give its value.

Let fx.)-/1 if lul2x, Let f(x)o otherwise. 2. Does the directional derivative of fin the direction of (1,10") at the point (0,0) exist? If yes, give its value. 2005)