Which of the following represents the chebyshev recursive formula?

• A. Tm(z) = 2zTm-1(z) – Tm-2(z)
• B. Tm(z) = zTm-1(z) – 2Tm-2(z)
• C. Tm(z) = 2Tm-1(z) – zTm-2(z)
• D. Tm(z) = Tm-1(z) – 2zTm-2(z)