A 4 x 4 DFT matrix is given by :\(\frac{1}{2}\left[ {\begin{array}{*{20}{c}} {\begin{array}{*{20}{c}} 1&1\\ 1&x \end{array}}&{\begin{array}{*{20}{c}} 1&1\\ { - 1}&y \end{array}}\\ {\begin{array}{*{20}{c}} 1&{ - 1}\\ 1&{ - j} \end{array}}&{\begin{array}{*{20}{c}} 1&{ - 1}\\ { - 1}&j \end{array}} \end{array}} \right]\)(j2 = -1)Where values of x and y are_____ , ______ respectively.

A 4 x 4 DFT matrix is given by :\(\frac{1}{2}\left[ {\begin{array}{*{2

1.	A 4 x 4 DFT matrix is given by :\(\frac{1}{2}\left[ {\begin{array}{{20}{c}} {\begin{array}{{20}{c}} 1&1\\ 1&x \end{array}}&{\begin{array}{{20}{c}} 1&1\\ { - 1}&y \end{array}}\\ {\begin{array}{{20}{c}} 1&{ - 1}\\ 1&{ - j} \end{array}}&{\begin{array}{*{20}{c}} 1&{ - 1}\\ { - 1}&j \end{array}} \end{array}} \right]\)(j2 = -1)Where values of x and y are_____ , ______ respectively.
A.	1, -1
B.	-1, 1
C.	-j, j
D.	j, -j
Answer» E.