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If f, g : RR to RR are defined by f(x) =...

If `f, g : RR to RR` are defined by `f(x) = |x| - x`, and `g(x) = |x| - x`, find `g^(@) f and f^(@)g`.

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Knowledge Check

  • Let f: RR to RR be defined by f(x)=1 -|x|. Then the range of f is

    A
    `RR`
    B
    `(1,oo)`
    C
    `(-1,oo)`
    D
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  • Let f:RR to RR be defined by f(x)=1-|x| . Then the range of f is

    A
    `RR`
    B
    `(1,oo)`
    C
    `(-1,oo)`
    D
    `(-oo,1]`
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