Let be given by
MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions
Problem
Let f:R∖{2}→R∖{0} be given by f(x)=x−21. The inverse f−1(x) is
(a) f−1(x)=x−21
(b) f−1(x)=x1
(c) f−1(x)=x1+2
(d) f−1(x)=2−x1
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