Question

алгебра, 7 класс, множества​

Answer 1

$5)\ \ M=\{\, x\, |\ x\in Z:\ |x|\leq 3\, \}=\{\, x\, |\ x\in Z:\ -3\leq x\leq 3\, \}=\\\\=\{-3,-2,-1,0,1,2,3\, \}\\\\K=\{\, x\, |\ x\in Z:\ x^2\leq 9\, \}=\{\, -3,-2,-1,0,1,2,3\}\\\\M=K$

$6)\ \ A=\{\, 0,1,4,9,16,25\, \}=\{\, x\, |\, n\in Z\, ,\, 0\leq n\leq 5:\ x=n^2\, \}\\\\B=\{\, 1,5,9,13,17,21\, \}=\{\, x\, |\, n\in Z\ ,\ 1\leq n\leq 6:\ x=4n-3\, \}$