list as many of the parts of fundamental theorem of linear algebra
as you can. An...
list as many of the parts of fundamental theorem of linear algebra
as you can. An nxn matrix A is invertible if and only if ....
Solutions
Expert Solution
The
answer is in the pic. If any doubt still remained, let me know in
the comment section. If this solution helped, please upvote to
encourage us. Thanks :)
According to the Fundamental Theorem of Algebra, every
nonconstant polynomial f (x) ∈
C[x] with complex coefficients has a complex root.
(a) Prove every nonconstant polynomial with complex coefficients
is a product of linear polynomials.
(b) Use the result of the previous exercise to prove every
nonconstant polynomial with real coefficients is a product of
linear and quadratic polynomials with real coefficients.
Prove by induction that it follows from Fundamental Theorem of Algebra that every f(x) ∈ C[x] can be written into a product of linear polynomials in C[x].
(a) Are there matrices A,B∈Mn(R)A,B∈Mn(R) such that AB−BA=IAB−BA=I. (b) Suppose that A,B∈Mn(R)A,B∈Mn(R) such that (AB−BA)2=AB−BA(AB−BA)2=AB−BA. Show that AA and BB are commutable.
Let A ∈ Mn(R) such that I + A is invertible. Suppose that B = (I − A)(I + A)-1(a) Show that B = (I + A)−1(I − A)(b) Show that I + B is invertible and express A in terms of B.