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Find x if g(f(f(x)))=f(g(g(x))), "give...

Find x if `g(f(f(x)))=f(g(g(x))), "given"f(x)=3x+1andg(x)=x+3`.

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Knowledge Check

  • If f(x) =x^(2) -2,g (x) =2x+ 1 then f^(@) g (x)

    A
    `4x^(2) -4x+ 1 `
    B
    `4x ^(2) -4x -1`
    C
    ` 4x^(2) +4x+ 1 `
    D
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