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Question Number 79826 by Pratah last updated on 28/Jan/20

Commented by Pratah last updated on 28/Jan/20

$$\mathrm{please}\mathrm{solution}.\mathrm{help}$$

Commented by mr W last updated on 28/Jan/20

$$youmayrepeatthequestionanother$$$$\mathrm{\infty }times,butyou{won}^{\prime }tgetanother$$$$answerthaninQ78732...$$

Commented by Pratah last updated on 28/Jan/20

$$\mathrm{solution}\mathrm{pls}$$

Commented by mr W last updated on 28/Jan/20

$$f\left(x\right)=6-3^{\frac{x}{\sqrt{x^2+2x+6}}}$$$$\Rightarrow f\left(f\left(f\left(x\right)\right)\right)=x$$$$\Rightarrow f\left(x\right)=x$$$$\Rightarrow x\approx 3.8001349\left(onlynumerically\right)$$

Commented by Pratah last updated on 28/Jan/20

$$\mathrm{step}\mathrm{by}\mathrm{step}\mathrm{solution}\mathrm{sir}\mathrm{pls}$$

Commented by mr W last updated on 28/Jan/20

$$thereisno‘‘{nice}^{″}solutionpossible.$$$$duetosymmetryx=y=z$$$$alltheequationsarethesame$$$$\sqrt{x^2+2x+6}{\log }_3(6-x)=x$$$$butyoucansolveitonlynumerically:$$$$x\approx 3.800135$$

Commented by Pratah last updated on 28/Jan/20

$$\mathrm{ok}$$

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