00:01
In this problem we have to construct a root array and determine the stability of the system whose characteristic equation is given by s raised to the power 6 plus 2 s raised to the power 5 plus 8 s raised to the power 4 plus 12 s 2 plus 20 s square plus 16 s plus 16 equal to 0.
00:18
Now to construct a ruth array we will first make a grid on and on the left hand side of the grid we will make we will write the rows for x raised to the power 6 s raised to the power 5 s raised to the power 4 s raised to the power 3 s raised to the s square s and s raised to the 0 s and s raised to the power 0 now in the right hand side for the first row we will write 1 8, 20, 16.
01:01
For s -rays to the power 5, we will have 2, 12, 16.
01:06
In the next row, for s -4, we will have 16 minus 12 divided by 2, that is 4 divided by 2, it is equal to 2.
01:15
Next, on the next column, we will have 40 minus 16 divided by 2, that is 24 divided by 2, that is, 24 divided by 2, that is equal to 12, and 16 multiplied by 2 divided by 2 is equal...