Find an upper triangular matrix `A` such that `A^3 = [(8,-57), (0, 27)]`

Define triangular Matrix.

Defind Triangular Matrix.

the upper triangular matrix of the matrix [{:(1,-1,2), (2," 1",3),(3, " 2",4):}] is

the upper triangular matrix of the matrix [{:(1,-1,2), (2," 1",3),(3, " 2",4):}] is

The upper triangular matrix of the matrix [[1,-1,2],[2,1,3],[3,2,4]]

A matrix A=[a_(ij)] is an upper triangular matrix if (A) it is a square matrix with a_(ij)=0 for igtj (B) it is a square with a_(ij)=0 for iltj (C) it is not a square matrix with a_(ij)=0 for igtj (D) if is not a sqare matrix with a_(ij)=0 for iltj

A matrix A=[a_(ij)] is an upper triangular matrix, if