Question

calculati (x^2-1/x^2+1 )^2+(2x/x^2+1)^2
AM NEVOIE URGENT DE EXERCITIU.MAXIM 10 MIN.HELP PLSSSS

Answer 1

Explicație pas cu pas:

$\frac{( {x}^{2} - 1) ^{2} }{( {x}^{2} + 1) } + \frac{4 {x}^{2} }{( {x}^{2} + 1) ^{2} }$

$\frac{x ^{4} - 2x ^{2} + 1 }{( {x}^{2} + 1) ^{2} } + \frac{4 {x}^{2} }{( {x}^{2} + 1) ^{2} }$

$\frac{ {x}^{4} - 2 {x}^{2} + 1 + 4 {x}^{2} }{( {x}^{2} + 1) ^{2} }$

$\frac{x ^{4} + 2 {x}^{2} + 1 }{( {x}^{2} + 1) ^{2} }$

$\frac{( {x}^{2} + 1) ^{2} }{( {x}^{2} + 1) ^{2} }$

$1$