Question

chi ra tinh chat dac trung cua tap hop 

A  ={1,3,5,7,...,29}

B ={0,1,4,9,16,25,...,}

C =TAP HOP cac so tu nhien chia het cho 5 va be hon 30 

Answer 1

A={x thuoc N | 0<x<30,x la cac so le}

C={0;5;10;15;20;25}

chuc bn hoc gioi!

Answer 2

tinh chat dac trung cua tap hop A la: hieu giua cac phan tu la 2 don vi.

tinh chat dac trung cua tap hop B la: hieu giua cac phan tu la 5 don vi

tinh chat dac trung cua tap hop C la: cac phan tu deu chia het cho 5 .

nho k cho Nhi nha!