Question

3)
Express the following sets.
{(x, y) / x2 + y² =25 , x, y Ew} ​

Answer 1

Step-by-step explanation:

={-4,-3,3,4)

cardinal no=4

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Answer 2

The sets are {(0,5),(3,4)(4,3)(5,0)}.

• We have to find the sets that satisfy the condition given in the function.
• Given condition is $x^{2} + y^{2}  = 25$.
• where x,y ∈ W.
• we check by starting to put x=0 we substitute in the equation , we obtain y=0.
• Now when x=1 then there is no solution for y∈W.
• Now for x=2 there is no solution for y∈W.
• Now for x=3 we obtain y=4.
• Now for x=4 we obtain y=3.
• For x=5 we obtain t=0.
• Therefore the sets obtained is (0,5)(3,4)(4,3)(5,0).