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Q.

Strictly monotonic function is

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a

onto definitely

b

bijection

c

one – one definitely

d

neither one – one nor onto

answer is C.

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Detailed Solution

Strictly monotonic function is one-one definitely

$\begin{array}{l} \sin c e i f x_{1} < x_{2} \Rightarrow f (x_{1}) < f (x_{2}) \\ a n d x_{1} > x_{2} \Rightarrow f (x_{1}) > f (x_{2}) \end{array}$

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Strictly monotonic function is