'Let `f,g: RvecR` be two functions defined as `f(x)=|x|+x` and `g(x)=|x|-x` , for all `xRdot

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"Let `f,g: RvecR` be two functions defined as `f(x)=|x|+x` and `g(x)=|x|-x` , for all `xRdot` Then find fog and gof."
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