2) Are the following functions well defined? Justify your answers. → Z defined by f(a/b) = b (a) f: Q – (b) f: Q → Q defined by f () = b/a

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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Plz help with these modern algebra , I dont understand

 

 

2) Are the following functions well defined? Justify your answers.
→ Z defined by f(a/b) = b
(a) f: Q –
(b) f: Q → Q defined by f () = b/a
Transcribed Image Text:2) Are the following functions well defined? Justify your answers. → Z defined by f(a/b) = b (a) f: Q – (b) f: Q → Q defined by f () = b/a
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