10. Let (X, Tx) and (Y, Ty) be two topological spaces, such that X = {a, b,c, d}, Tx = {0, X, {a}, {a, b}, {a, b,c}} Y = {1,2, 3, 4}, Ty {6,Y, {2}, {2,3, 4}} Consider the functions f: XY and g: X Y defined by f(a) = f(b) = 2, f(c) = 4, ƒ(d) = 3 g(a) = g(b) = 9(d) = 2, g(c) = 3 Then (a) f and g are both continuous (b) f and g are both discontinuous (c) f is discontinuous and g is continuous (d) f is continuous and g is discontinuous

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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10. Let (X, Tx) and (Y, Ty) be two topological spaces, such that
X = {a, b,c, d}, Tx {o, X, {a}, {a, b}, {a, b, c}}
Y = {1,2, 3, 4}, Ty {6,Y, {2}, {2,3, 4}}
Consider the functions f: X-Y and g: X -Y defined by
f(a) = f(b) 2, f(c) = 4, f(d) = 3
g(a) = g(b) = 9(d) = 2, g(c) = 3
Then
(a) f and g are both continuous
(b) f and g are both discontinuous
(c) f is discontinuous and g is continuous
(d) f is contimuous and g is discontinuous
Transcribed Image Text:10. Let (X, Tx) and (Y, Ty) be two topological spaces, such that X = {a, b,c, d}, Tx {o, X, {a}, {a, b}, {a, b, c}} Y = {1,2, 3, 4}, Ty {6,Y, {2}, {2,3, 4}} Consider the functions f: X-Y and g: X -Y defined by f(a) = f(b) 2, f(c) = 4, f(d) = 3 g(a) = g(b) = 9(d) = 2, g(c) = 3 Then (a) f and g are both continuous (b) f and g are both discontinuous (c) f is discontinuous and g is continuous (d) f is contimuous and g is discontinuous
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