Let . Which of the following declarations makes…

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Let

f(x)=x^{2}

. Which of the following declarations makes

f

onto? (a)

f:\mathbb{R}\to\mathbb{R}

(b)

f:[0,\infty)\to\mathbb{R}

(c)

f:\mathbb{R}\to(0,\infty)

(d)

f:\mathbb{R}\to[0,\infty)

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