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You want to use the Fast Fourier Transform to multiply the polynomials A(x)=1+xx2+x3x4+x5, and B(x)=2x23x3+6x6. Which is the appropriate root of unity to use? 8th

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You want to use the Fast Fourier Transform to multiply the polynomials A(x)=1+xx2+x3x4+x5, and B(x)=2x23x3+6x6. Which is the appropriate root of unity to use? 8th roots of unity. 16th roots of unity. 5th roots of unity. 6th roots of unity

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