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Question Number 54969 by gunawan last updated on 15/Feb/19
$$\mathrm{Let}\:\lambda\:\mathrm{is}\:\mathrm{value}\:\mathrm{of}\:\mathrm{characteristic} \\ $$$$\mathrm{matrices}\:{P}\:\:\mathrm{the}\:\mathrm{fill}\:{P}^{{t}} ={P}^{\mathrm{2}} \\ $$$$\mathrm{find}\:\mathrm{all}\:\lambda\:\mathrm{the}\:\mathrm{posible} \\ $$