h: N- N defined by h(n) = the sum of the digits of n. %3D h is injective but not surjective h is surjective but not injective h is both injective and surjective h is neither injective nor surjective,

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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h: N- N defined by
h(n)
= the sum of the digits of n.
h is injective but not surjective
h is surjective but not injective
h is both injective and surjective
h is neither injective nor surjective,
Transcribed Image Text:h: N- N defined by h(n) = the sum of the digits of n. h is injective but not surjective h is surjective but not injective h is both injective and surjective h is neither injective nor surjective,
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