Which of the following rules is not a function from R to R ? - Vidyadip

MCQ

Which of the following rules is not a function from $R$ to $R$ ?

A
$f(x)=x^2$
✓
$f(x)=\sqrt{x}$
C
$f(x)=x^{1 / 3}$
D
$f(x)=x^3$

✓

Answer

Correct option: B.

$f(x)=\sqrt{x}$

B

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