Question

b={x:x€n, 3x-6<9}write this in roaster for and write cardinal number ​

Answer 1

Step-by-step explanation:

N = 1, 2, 3, 4, 5......

3(1)-6 = -3

3(2)-6 = 0

3(3)-6 = 3

3(4)-6 = 6

3(5)-6 = 9

B = {-3, 0, 3, 6, 9}

n(B) = 5