Question

f:(-infinte, infinite) (0,1]defined byf(x)=1/x+1 is

Answer 1

soln:

Given, 0 < x ≤ 1

or, 1 ≤ 1/x < ∞

or, 1 + 1 ≤ 1 / x + 1 < ∞ + 1

or, 2 ≤ 1/x + 1 < ∞

or, Range of 1/x + 1 = [2, ∞)

Question is not clear. I just calculated the range of the function.