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MATHEMATICS

JAMB 2007 - Question 38

Mathematics 2007 JAMB Past Questions - Question 38: if X={all perfect square less than 40}Y={all odd number from 1to 15)find XnY

if X={all perfect square less than 40}Y={all odd number from 1to 15)find XnY

A: {3,9}

B: {9}

C: {9,25}

D: {1,9}

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Correct Answer

Explanation

x = {1,4,9,16,25,36}y = {1,3,5,7,9,11,13,15} X n Y={1,9}X = {1, 4, 9, 16, 25, 36}Y = {1, 3, 5, 7, 9, 11, 13, 15}To find the intersection (X ∩ Y) of sets X and Y, we need to identify the elements that are common to both sets.From the given sets, we can see that the common elements are {1, 9}.Therefore, X ∩ Y = {1, 9}.