西安毛子科技大学三XIDIAN UNIVERSITY要使①式成立,只需取Q. = DQ. = D.Q - AQ. = D,Q = D, + AQoQk - AQk-1 = DkQk = D, + AQk-1即Qm-11_ AQm=2 = Dm-1Qm-1 = Dm-1 + AQm-2-AQm-1 +U.= D,U. = Dm + AQ.nm即可。同理可证②要使①式成立,只需取 0 0 1 0 1 1 1 2 1 1 0 k k k m m m m m Q D Q AQ D Q AQ D Q AQ D AQ U D − − − − − = − = − = − = − + = 即 0 0 1 1 0 1 1 1 2 0 1 k k k m m m m m Q D Q D AQ Q D AQ Q D AQ U D AQ − − − − − = = + = + = + = + 即可. 同理可证②