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Let * be a binary operation on Z × Z defined by (a, b) * (c, d) = (a + c, b + d); (a, b), (c, d) ∈ Z × Z. Find (1, 2) * (3, 5) and (4, 3) * (1, 0). 

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(1, 2) * (3, 5) = (4, 7) and  

(4, 3) * (1, 0) = (5, 3) 

Ans. (4, 7) , (5, 3) 

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