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Home  >>  AIMS  >>  Class11  >>  Math  >>  Relations and Functions
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The given figure shows two trains running in opposite directions. \[\] Which function’s graph resembles the paths of the trains?

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f: R $ \rightarrow $ R defined by \[f(x) = \left\{ \begin{array}{l l} \large\frac{|x|}{x}, & \quad if\: x \neq 0 \\ 0, & \quad if\: x = 0 \end{array} \right.\]
Hence (D) is the correct answer.
answered Jun 28, 2014 by thanvigandhi_1

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