Which of the following functions have the same range?

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

Problem

Which of the following functions have the same range? (1)

f(x)=\dfrac{1}{1+x}

(2)

f(x)=\dfrac{1}{1+x^2}

(3)

f(x)=\dfrac{1}{1+\sqrt{x}}

(4)

f(x)=\dfrac{1}{\sqrt{3-x}}

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