30. x² + y² + z³ +z lim (x, y, z) (0, 0, 0) x + 2y²

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use squeeze theorem to find limit.   

30.
x² + y² + z³
+z
lim
(x, y, z) (0, 0, 0) x + 2y²
Transcribed Image Text:30. x² + y² + z³ +z lim (x, y, z) (0, 0, 0) x + 2y²