Mathematics, 10.10.2021 21:10 KaiKai11

Bài 1. Tìm mệnh đề phủ định của các mệnh đề sau: a) r : ”∀x ∈ R : f (−x) = f (x)”,
trong đó f (x) là hàm số xác định trên R.
b) q : ”∃x ∈ N : 2
2
n
+1 là hợp số”.
c) r : ”∀ε > 0,∃n0,∀n ≥ n0 :
un −L
< ε”,

trong đó (un) là dãy số xác định trên R và L là số thực
nào đó.

Answers: 2

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Bài 1. Tìm mệnh đề phủ định của các mệnh đề sau: a) r : ”∀x ∈ R : f (−x) = f (x)”,
trong đó...