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If (x)=2x and g(x)=(x^(2))/(2)+1, then w...

If `(x)=2x and g(x)=(x^(2))/(2)+1`, then which of the following can be a discontinuous function

A

f(x) + g(x)

B

f(x) - g(x)

C

f(x)g(x)

D

`g(x)/f(x)`

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