Find the determinant of the following matrix.
2 2 4 2
3 0 5 0
0 2 0 2
0 2 0 5
(2242305002020205)
|2242305002020205|=2∗|050202205|−3∗|242202205|=2∗(−5)∗|2225|−3∗(−4)∗|2225|=(−10+12)∗|2225|=2∗|2225|=2∗(2∗5−2∗2)=2∗(10−4)=2∗6=12