👤

Fie multimea A=
[tex] \frac{9}{ - 3} [/tex]

[tex] \sqrt{0.(4)} [/tex]
[tex] \frac{ - 20}{ - 5} [/tex]
[tex] \sqrt{5 \frac{4}{9} } [/tex]
[tex] - \sqrt{15} [/tex]
[tex] \sqrt{0.1} [/tex]
[tex]2[/tex]
[tex] {( - 2)}^{ - 2} [/tex]
[tex] {( - \frac{1}{2}) }^{ - 1} [/tex]
Determinati : A intersectat cu N
A intersectat cu Z
A intersectat cu Q
A intersectat cu (R-Q)
A\Z
A\Q
A\(R-Q)



VA ROG AJUTATI.MA ​


Fie Multimea Atex Frac9 3 Textex Sqrt04 Textex Frac 20 5 Textex Sqrt5 Frac49 Textex Sqrt15 Textex Sqrt01 Textex2textex 2 2 Textex Frac12 1 TexDeterminati A Inte class=

Răspuns :

9/-3 = -3

V0,(4) = V(4/9) = 2/3

-20/-5 = 4

V5 4/9 = V(49/9) = 7/3

V0,1 = V(1/10) = 1/V10

(-2)⁻² = 1/4

(-1/2)⁻¹ = 2/-1 = -2

A∩ N ={-20/-5; 2}

A∩ Z ={9/-3; -20/-5; 2; (-1/2)⁻¹}

A∩ Q={9/-3; -20/-5; 2; (-1/2)⁻¹; V0,(4); V5 4/9; (-2)⁻²}

A ∩ (R/Q) = {-V15; V0,1}

A/Z = {V0,(4); V5 4/9; (-2)⁻²}

A/Q = {-V15; V0,1}

A/{R/Q} = multime vida