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A function f (x) is defined as follows: ...

A function f (x) is defined as follows:
`f(x)={{:(x+2,"when "xlt2),(x^(2)-1,"when "xge2):}`
Show that f (x) is discontinuous at x = 2 and the jump of the function at this point is -1 .

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The correct Answer is:
`-1`
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