Question

Hay xac dinh tap hop sau bang cach chi ra tinh chat dac trung cua cac phan tu cua no.

A. Tap hop m la cac so tu nhien chia het cho 5 va be thua 30

Answer 1

M = { x thuoc N/ x <30 , la cac so tang dan len cach 5 don vi . ) 0 ; 5;10;...;25.

ai k minh di

thanks

k minh thi minh k lai

Answer 2

cam on m.n

Answer 3

M = { x \(\in\)\(ℕ\)| x \(⋮\)5 ; x >30 }