1.

If 1, omega, omega^(2) are three cube roots of unity, show that (a + omega b+ omega^(2)c) (a + omega^(2)b+ omega c)= a^(2) + b^(2) + c^(2)- ab- bc - ca

Answer»


Answer :`a^(2) + B^(2) + C^(2)- ab- bc - AC`


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