Question

Range of the function


x²+1/1+x²​

Answer 1

Answer:

x=0

f(x)=x

2

+

x

2

+1

1

=0+

0+1

1

=1

When x>0

f(x)>1

When

x<0

f(x)>1

So the range of f(x)=[1,∞)