Math Experts

Which of the following statements about the real matrix shown above is FALSE?

Which of the following statements about the real matrix shown above is FALSE?
A is invertible
det(A) = 120
If x ∈R^5 and Ax = x, then x = 0.
The last row of A2 is (0 0 0 0 25).
The matrix into the 5 x 5 identity matrix by a sequence of elementary row operations.

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