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#2db2692b-aadc-441d-854f-2e38b6327b8f中等填空题等差数列的概念与通项数列

8.已知等差数列{an}\{a_{n}\}中的各项均大于0,且3a32+a1+a5=163{a}_{3}^{2}+a_{1}+a_{5}=16,则a3a1a11a3\frac{a_3}{a_1}-\frac{a_{11}}{a_3}的最小值为((  ))