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x*x/(x+1^2)+(x+1)*(x+1)/x^2>15/4 desigualdades

En la desigualdad la incógnita

Solución

Ha introducido [src]
 x*x    (x + 1)*(x + 1)       
----- + --------------- > 15/4
x + 1           2             
               x              
$$\frac{x x}{x + 1} + \frac{\left(x + 1\right) \left(x + 1\right)}{x^{2}} > \frac{15}{4}$$
(x*x)/(x + 1) + ((x + 1)*(x + 1))/x^2 > 15/4
Solución de la desigualdad en el gráfico
Respuesta rápida 2 [src]
            /   4       3      2              \            /   4       3      2              \                  /   4       3      2              \            /   4       3      2              \     
(-1, CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 0/) U (CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 1/, 0) U (0, CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 2/) U (CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 3/, oo)
$$x\ in\ \left(-1, \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 0\right)}\right) \cup \left(\operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 1\right)}, 0\right) \cup \left(0, \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 2\right)}\right) \cup \left(\operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 3\right)}, \infty\right)$$
x in Union(Interval.open(-1, CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 0)), Interval.open(0, CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 2)), Interval.open(CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 1), 0), Interval.open(CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 3), oo))
Respuesta rápida [src]
  /   /                   /   4       3      2              \\     /                  /   4       3      2              \\     /              /   4       3      2              \    \     /               /   4       3      2              \    \\
Or\And\-1 < x, x < CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 0//, And\0 < x, x < CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 2//, And\x < 0, CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 1/ < x/, And\x < oo, CRootOf\4*x  - 11*x  - 3*x  + 12*x + 4, 3/ < x//
$$\left(-1 < x \wedge x < \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 0\right)}\right) \vee \left(0 < x \wedge x < \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 2\right)}\right) \vee \left(x < 0 \wedge \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 1\right)} < x\right) \vee \left(x < \infty \wedge \operatorname{CRootOf} {\left(4 x^{4} - 11 x^{3} - 3 x^{2} + 12 x + 4, 3\right)} < x\right)$$
((-1 < x)∧(x < CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 0)))∨((0 < x)∧(x < CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 2)))∨((x < 0)∧(CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 1) < x))∨((x < oo)∧(CRootOf(4*x^4 - 11*x^3 - 3*x^2 + 12*x + 4, 3) < x))