Show that if x is an integer and x3 + 11 is odd, then x is even using a proof by contraposition.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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discrete math

Show that if x is an integer and x3 + 11 is odd,
then x is even using a proof by contraposition.
marks are assigned as follows:
- Writing the contraposition of the expression
is 2.5 marks.
- Derivation is 2.5 marks.
- Result is 2.5 marks
Write your answer below:
Transcribed Image Text:Show that if x is an integer and x3 + 11 is odd, then x is even using a proof by contraposition. marks are assigned as follows: - Writing the contraposition of the expression is 2.5 marks. - Derivation is 2.5 marks. - Result is 2.5 marks Write your answer below:
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