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Magnification by a Spherical Surface

Let R = P , Q...

Question

Let R = { (P,Q) : OP = OQ , O being the origin} be an equivalence relation on A . The equivalence class [( 1,2)] is

A

{(x,y) : x²+y² = 1}

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B

{(x,y) : x² = y² }

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C

{(x,y) : x²+y² = 5}

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D

{(x,y) : x²+y² = 4}

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Solution

The correct option is C
{(x,y) : x²+y² = 5}

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Similar questions

A = {(x, y) : x^{2} + y^{2} \leq 1; x, y ϵ R}

B = {(x, y) : x^{2} + y^{2} \geq 4; x, y ϵ R}

A = {(x, y) : x^{2} + y^{2} \leq 1 x, y \in R}

B = {(x, y) : x^{2} + y^{2} \leq 16 x, y \in R}

A = {y : x^{2} + y^{2} < 1, x \in N}

B = {y : x^{2} + y^{2} = 4, x \in N}

n (A \times B)

A = {y : x^{2} + y^{2} < 1, x \in N}

B = {y : x^{2} + y^{2} = 4, x \in N},

n (A \times B)

A = {(x, y) : x^{2} + y^{2} \leq 1; x, y \in R}

B = {(x, y) : x^{2} + y^{2} \geq 4; x, y \in R}

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