..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1 an=?

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..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1an=?..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1an=?..已知数列an中,an+1/3an=2

..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1 an=?
..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1 an=?

..已知数列an中,an+1/3an=2的n次方(n+1为脚标)a1=1 an=?
a(n+1)/(3an)=2
a(n+1)/an = 6
an/a1 =6^(n-1)
an = 6^(n-1)