GATE 2019
Consider the matrix R = \[\begin{bmatrix}1 & 2 & 4 & 8\\1 & 3 & 9 & 27\\1 & 4 & 16 & 64\\1 & 5 & 25 & 125\end{bmatrix}\]. The absolute value of the product of Eigenvalues of R is _______
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