Q2) Find the limit, if it exists, or show that the limit does not exist (a) x² yey lim (z,y)-(0,0) x4 + 4y² =응 U=0 lim 9

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Q2) Find the limit, if it exists, or show that the limit does not exist (a) x² yey lim (z,y)-(0,0) x4 + 4y² =응 U=0 lim 990 y=x² чуч n² ne + 4224 1+ y² 7² + xy. -in (10) = 1n1=0 (b) lim (x,y)-(1,0) Q3) Find all the second-order partial derivatives of the function w (x, y) = yey²-x I 6 =G In n =1 5