Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Computer Graphics Mathematics For Computer Graphics
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.
1
1, -1
2
-1, 1
3
-j, j
4
j, -j