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Show the function, f(x) = {{:((e^(1//x)-...

Show the function, `f(x) = {{:((e^(1//x)-1)/(e^(1//x)+1)",","when",x ne 0),(0",","when",x = 0):}` has non-removable discontinuity at x = 0

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The correct Answer is:
`rArr" "underset(x rarr 0^(+))(lim)f(x) ne underset(x rarr 0^(-))(lim)f(x)`
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