Represent polynomials given its factors P3 s2s5s6 can be tr

Represent polynomials given its factors. P3 = (s+2)(s+5)(s+6) can be transformed into a polynomial using the Matlab command: poly ([-2 -5 -6]) poly ([2 5 6]) form([-2 -5 -6]) roots([2 5 6])

Solution

Ans) Given Polynomial P3=(s+2)(s+5)(s+6) ,its roots are

s=-2,-5,-6

To transform into polynomial using roots in matlab is done by poly command

i.e poly([-2 -5 -6])

p = poly(r), where r is a vector, returns the coefficients of the polynomial whose roots are the elements of r