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1.Relation and Function
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Which of the following function is inverse function
A
$f(x) = \frac{1}{{x - 1}}$
B
$f(x) = {x^2}$ for all$x$
C
$f(x) = {x^2}$, $x \ge 0$
D
$f(x) = {x^2},\;x \le 0$
Solution
(a) For finding inverse of any function, function should be bijective.
Since $f(x) = \frac{1}{{x – 1}}$ is bijective function.
Standard 12
Mathematics
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