d) Let the function: f(x, y) = 3, < 0, Find the following limits: (i), lim (z.y)-(3,-2) f(x, y) , (ii) lim (2.y)(-2,1) f(2, y) (i), lim (2,-y)→(0,0) f(z, y)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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d) Let the function:
f(x, y) =
|, X< 0,
Find the following limits:
(i)
f (x, y) , (ii)
lim
(2,-y)→(0,0)
f(z, y)
(z,y)-(3,-2)
lim
lim
(x,y)→(-2,1)
f(z, y) (iii),
e) What does it mean to say that a function f(x, y) is continuous at a point (To, Yo)? State at
least 3 facts.
f) Show that fa(0,0) and fy (0,0) exist, but f is not differentiable at the point (0,0):
S, (7, y) # (0, 0)
(x, y) = (0,0)
J0, z <y< 2?
1, otherwise
(ii) f(x,y) =
(i) f(x, y) =
Transcribed Image Text:d) Let the function: f(x, y) = |, X< 0, Find the following limits: (i) f (x, y) , (ii) lim (2,-y)→(0,0) f(z, y) (z,y)-(3,-2) lim lim (x,y)→(-2,1) f(z, y) (iii), e) What does it mean to say that a function f(x, y) is continuous at a point (To, Yo)? State at least 3 facts. f) Show that fa(0,0) and fy (0,0) exist, but f is not differentiable at the point (0,0): S, (7, y) # (0, 0) (x, y) = (0,0) J0, z <y< 2? 1, otherwise (ii) f(x,y) = (i) f(x, y) =
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