Find the cardinal number for the following sets.
A = {104 , 105, 106 , 107 ,..., 141}
B = {104 , 106 , 108 , ..., 304 }
Find the cardinal number for the following sets.
A = {104 , 105, 106 , 107 ,..., 141}
B = {104 , 106 , 108 , ..., 304 }
Set A = { 104 , 105, 106 , 107 ,..., 141 }
subtract from each element 101 we have 1, 2, 3, ... , 40
n(A) = 141-101 = 40
Set B = { 104 , 106 , 108 , ..., 304 }
subtract from each element 102 we have 2, 4, 6, ... , 202
202 = 2n
so
n(B) = 202/2 = 101