Question

let A ={-1,2,3} and B ={1,3}. Determine A×B
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Answer 1

Step-by-step explanation:

We have A = {-1,2,3} and B = {1,3}

(i) A x B = {(-1, 1), (-1, 3), (2, 1), (2, 3), (3,1), (3, 3)}

(ii) BxA = {( 1, -1), (1, 2), (1,3), (3,-1), (3,2), (3, 3)}

(iii) BxB= {(1,1), (1,3), (3,1), (3, 3)}

(iv) AxA = {(-1, -1), (-1, 2), (-1, 3), (2, -1), (2, 2), (2, 3), (3, -1), (3, 2), (3,3)}

Answer 2

To Find :

• A × B

Solution :

• A = { - 1, 2 , 3}
• B = {1 ,3}

A × B = {(-1, -3) ,(2, 6) ,(3 ,9)}

More About set Chapter :

Set : Set is well defined collection of objects.

Example :

• Set of First five natural Numbers

N = {1 ,2, 3, 4 ,5}

Anyone can easily identify any element which belongs to this set .

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