Let \( \left|\begin{array}{ccc}1+x & x & x^{2} \\ x & 1+x & x^{2} \\ x^{2} & x & 1+x\end{array}\... VIDEO
Let \( \left|\begin{array}{ccc}1+x & x & x^{2} \\ x & 1+x & x^{2} \\ x^{2} & x & 1+x\end{array}\right|=a x^{5}+b x^{4}+c x^{3}+d x^{2}+\lambda x+\mu \)https://bit.ly/YTAI_PWAP https://www.pw.live
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