MAT 301 Analysis 1 CA 2019

About this paper

MAT 301: University of Buea, Continuous Assessment Test 1 (S. Tchuiaga, 1h50m, 1-page source; header says 'December 2019' but the Date and Time field says '18-08-2019', an internal inconsistency flagged and resolved using the more specific field): directional-derivative definitions; full analysis of G(x,y)=2xy^2/(x^2+y^2) at the origin (continuous via polar bound, directional derivative D_(u,v)=2uv^2/(u^2+v^2) exists in every direction yet is non-linear, proving non-differentiability despite existing directional derivatives).