Question: Some oddity here


Ive stubled into something odd. Here it is: 

Now I really wonder how they figured how i was suppose to figure out how this is suppose to go. They did not explain all that much on how to find this out. This specifically is a "Computerized Question." 

It says "find the smallest number "n", so that A^n=I"

This was the result when i tried to solve it:

"Error, (in Engine:-Dispatch)" I have no idea what is wrong. 

Any way, 


The Function 

#Opdracht 9

A := `<,>`(`<|>`(0, 1, 0, 0), `<|>`(0, 0, 1, 0), `<|>`(1, 0, 0, 0), `<|>`(0, 0, 0, -1))

Matrix(%id = 18446746584512210574)


solve(A^n = I, n)

Error, (in Engine:-Dispatch) badly formed input to solve: not fully algebraic




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