Respuesta :

Step-by-step explanation:

first find the derivative and then substitute x=1

d/dx((x^2 -2)/(x^2 + 1)) = (2*x)/(1+x^2)+(4*x)/(1+(2*x^2)+x^4)+(-2*x^3)/(1+(2*x^2)+x^4)

substitute x=1

check the image above

slope = 1.5

Ver imagen chibunduoyibe