Question

find the range of f(x)=x+1/x​

Answer 1

Step-by-step explanation:

x+

x

1

≥2

x−

x

1

x+

x

1

≥2

Range ∈(2,∞) for x>0

for x<0

x+

x

1

≤−2

x.

x

1

=−2

Range of +(x)=(−∞,−2]u[2,∞)