Question Number 122640 by Eric002 last updated on 18/Nov/20
$${f}\left({f}\left({x}\right)\right)={x}^{\mathrm{2}} −\mathrm{1} \\ $$$${find}\:{f}\left({x}\right) \\ $$
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Question Number 122640 by Eric002 last updated on 18/Nov/20 | ||
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$${f}\left({f}\left({x}\right)\right)={x}^{\mathrm{2}} −\mathrm{1} \\ $$$${find}\:{f}\left({x}\right) \\ $$ | ||