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If w is a non real cube of unity, then (...

If `w` is a non real cube of unity, then `(a+b)(a+bw)(a+bw^2) =`

A

`a^3+b^3`

B

`a^3-b^3`

C

`a^2+b^2`

D

`a^2-b^2`

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NEW JOYTHI PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-QUESTIONS FROM COMPETITIVE EXAMS
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  13. If 3p^(2)=5p+2" and "3q^(2)= 5q+2, where p ne q, then the equation wh...

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  17. If |(z-i)/(z+i)|=1, then the locus of z is

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