Question

Cine mă ajută la exercițiul 18 e dau coroniță și multe puncte în plus repede vă rog

Answer 1

$A=\Bigg\{-3,-2,-1,0,1,2,3\Bigg\}\\\\ |x| < 5\iff -5 < x < 5\\\\\implies B = \Bigg\{-4, -3,-2,-1,0,1,2,3,4\Bigg\}\\\\ A\cap \mathbb{N} = \Bigg\{0,1,2,3\Bigg\}\\\\ B \setminus \mathbb{N}^* = \Bigg\{-4,-3,-2,-1,0\Bigg\}\\\\A\cap B = \Bigg\{-3,-2,-1,0,1,2,3\Bigg\}\\\\B\setminus A = \Bigg\{-4, 4\Bigg\}$