How to prove that
a) |x| − |y| ≤ |x − y| for
all x, y ∈ R
b) |x^2−4| ≤ 3|x−2|.
by using the properties of absolute value?
Thanks!
收錄日期: 2021-05-01 20:53:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170115134254AA1cFEE