Question

If a ∈ {- 1, 2, 3, 4, 5} and b ∈ {0, 3, 6}, write the set of all ordered pairs (a, b) such that a + b = 5.

Answer 1

Given as a ∈ {- 1, 2, 3, 4, 5} and b ∈ {0, 3, 6},

To find the ordered pair (a, b) such that a + b = 5

Now the ordered pair (a, b) such that a + b = 5 are as follows

(a, b) ∈ {(- 1, 6), (2, 3), (5, 0)}