Set A - x-y -x-y - R-x2-y2-1 - B- x-x - N-2x2-1- 7 -Are A and B comparable -

Given nbsp; B={ x:x ∈ nbsp;N, 2x^2 1 lt; 7 } 2x^2 1 lt;7 ⇒ x^2 4 lt;0 ⇒ x∈ ( 2,2) So, B={1} nbsp; nbsp;(since, 1,0 d ...

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Composite Function

Set A = x,y...

Question

Set $A = {(x, y) : x, y ϵ R, x^{2} + y^{2} = 1},$ $B = {x : x ϵ N, 2 x^{2} - 1 < 7}$ .
Are A and B comparable ?

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Solution

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Similar questions

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

B = {(x, 0) : x ϵ R, - 1 \leq x \leq 1} .

A \cap B = {(- a, 0), (1, b)}

A = {x : x \in I, x^{4} - x^{3} - {2 x}^{2} + 2 x = 0}

B = {x : x \in N, {2 x}^{2} - 1 < 7}

A

B

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, y \in R, x^{2} {+ y}^{2} = 1}

B = {(x, 0) : x \in R, - 1 \leq x \leq 1}

A \cap B =

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) ${(x, y) : x, y ϵ R, y = x^{3}}$

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