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Use the triangle inequality to establish the following inequalities: (b) ||c| – |d|| < |c – d| IPl + |이 > \p - 기 () (Note: these can be proven by cases, but they can also be deduced from the triangle inequality by choosing c or d cleverly. )

Use the triangle inequality to establish the following inequalities: (b) ||c| – |d|| < |c – d| IPl + |이 > \p - 기 () (Note: these can be proven by cases, but they can also be deduced from the triangle inequality by choosing c or d cleverly. )

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Use the triangle inequality to establish the following inequalities: (b) ||c| – |d|| < |c – d| IPl + |이 > \p - 기 () (Note: these can be proven by cases, but they can also be deduced from the triangle inequality by choosing c or d cleverly. )
Transcribed Image Text:Use the triangle inequality to establish the following inequalities: (b) ||c| – |d|| < |c – d| IPl + |이 > \p - 기 () (Note: these can be proven by cases, but they can also be deduced from the triangle inequality by choosing c or d cleverly. )
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