Let A be a squàre matrix of order 2 sụch...

Let `A` be a squàre matrix of order 2 sụch that `A^2 - 4 A+4 I=O` where `I` is an identity matrix of order `2 .` If `B=A^5+4 A^4+6 A^3+4 A^2+A`, then `det(B)`is equal to

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