T(w) T,=1 T2(w） T=x +1 T3=2x2-1 3w) T3=4x3-3x T4=8x4-8x2+1 T=16x3-20x3+5x Ts(w) L T x x x T x x T x x T x T x T 16 20 5 8 8 1 4 3 2 1 1 5 3 5 4 2 4 3 3 2 2 1 0 = - + = - + = - = - = =