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    用特征根法和递推法求解下列差分方程:[tex=13.214x1.357]dRIMnWdu1iboqG/SftCEuAv+dL2KbITY/TE4RMFHDk8=[/tex], 且 [tex=7.5x1.357]jNgd8jzRq/lHZthMxxpqi0HAtc9p0mY4+B/OG0W7eSU=[/tex]
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