If R - x - y - x - y - W - x 2- y 2-25then the number of elements in R isA- 3B- 2C- 5 D- 4

The correct option is D 4(x = 0, y =5), (x = 3, y =4), (x = 4, y =3), nbsp;(x = 5, y =0) Therefore, the number of elements in R is 4. ...

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Ordered Pair

If R = x , y ...

Question

If $R = {(x, y) : x, y \in W, x^{2} + y^{2} = 25}$ ,
then the number of elements in $R$ is

3

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4

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2

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5

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Similar questions

Which one of the following is not a function ?

(a) ${(x, y) : x, y ϵ R, x^{2} = y}$
(b) ${(x, y) : x, y ϵ R, y^{2} = x}$
(c) ${(x, y) : x, y ϵ R, x = y^{3}}$
(d) ${(x, y) : x, y ϵ R, y = x^{3}}$

R = {(x, y) : x, y \in W, x^{2} + y^{2} = 25}

W

R

R = {(x, y) : x, y \in Z, x^{2} + y^{2} \leq 4}

Z

D

Let R = ${(x, y) : x, y \in R, x^{2} + y^{2} \leq 25} R^{'} = {(x, y) : x, y \in R, y \geq \frac{4}{9} x^{2}}$ then

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