Question

The domain of the function f(x) = `sqrtx` is ______.

Options

• R

• R⁺ ∪ {0}

• R - {0}

• R⁺

Answer 1

The domain of the function f(x) = `sqrtx` is R⁺ ∪ {0}.

Explanation:

We have,

f(x) = `sqrtx`

f(x) is defined when x ≥ 0

∴ x ∈ [0, ∞]

∴ Division of f(x) = R⁺ ∪ {0}