What is the formula for chebyshev polynomial TN(x) in recursive form?

• A. 2TN-1(x) – TN-2(x)
• B. 2TN-1(x) + TN-2(x)
• C. 2xTN-1(x) + TN-2(x)
• D. 2xTN-1(x) – TN-2(x)