Question

x-x^2+1/x^2-1. Find domain of x​

Answer 1

Answer:

let me calculate

I will write it and give ans

Answer 2

Answer:

f(x)=

1+x

2

x

2

domain is R

let y=

1+x

2

x

2

⇒y+x

2

y=x

2

x

2

(y−1)+y=0

x

2

=

1−y

y

⇒x=±

1−y

y

, y



=1 & y≯1

so range is [0,1)