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If the function f:RR to RR is given by f...

If the function `f:RR to RR` is given by f(x) = x for all `x inRR` and the function `g:RR-{0} to RR` is given by `g(x)=(1/x), "for all "x in RR-{0},` then find the function f+g and f-g.

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The correct Answer is:
The function `f+g:g-{0} to RR` is defined by `(f+g)x=x+(1)/(x);` the function `f-g:RR-{0} toRR` is defined by `(f-g)x=x-(1)/(x)`
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