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If A=([x,x],[x,x]) then A^(n)(n in N)= ...

If `A=([x,x],[x,x])` then `A^(n)(n in N)=`
1) `([2^nx^n,2^nx^n],[2^nx^n,2^nx^n])`
2) `([2^(n-1) x^n,2^(n-1) x^n],[2^(n-1) x^n,2^(n-1) x^n])`
3) `I`
4) `([2^(n) x^(n-1),2^(n) x^(n-1)],[2^(n) x^(n-1),2^(n) x^(n-1)])`

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