Question

If
$f(x) = \frac{( {x }^{2} - 1)}{ {(x}^{2} + 1)} then \: find \: f (x) = (\frac{1}{5} )$​

Answer 1

Answer:

f(x)=x^2-1/x^2+1

Step-by-step explanation:

f(1/5)=(1/5)^2-1/(1/5)^2+1

=(1/25-1)/(1/25+1)

=(1-25)/25/(1+25)/25

= -24/25/26/25

= -24/26

= -12/13