In: Advanced Math
Consider the vector space P2 := P2(F) and its standard basis α = {1,x,x^2}.
1Prove that β = {x−1,x^2 −x,x^2 + x} is also a basis of P2
2Given the map T : P2 → P2 defined by T(a + bx + cx2) = (a + b +
c) + (a + 2b + c)x + (b + c)x2
compute [T]βα.
3 Is T invertible? Why
4 Suppose the linear map U : P2 → P2 has the matrix representation
(1 0 0
0 2 0
0 0 4)
Compute [UT]αα and complete the following
formula
(UT)(a+bx+cx2) =
Here we use the theory of verifying a basis or not. Matrix representation of linear transformation and coordinate basis representation etc. The last part provides some incomplete data.