1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If $$f:R \to R$$ is defined by $$f(x) = |x|$$, then

A
$${f^{ - 1}}(x) = {1 \over {|x|}}$$
B
$${f^{ - 1}}(x) = - x$$
C
$${f^{ - 1}}(x) = {1 \over x}$$
D
The function $${f^{ - 1}}(x)$$ does not exist.
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