Talk:Linear Algebra/Subspaces and Spanning sets/Solutions

f;R-R,F(x^2)=(F(X))^2 Is a vector subspace?

Which of these spaces are isomorphic to each other? (a) R3 (b) M2×2 (c) P3 (d) R4 (e) P2
Which of these spaces are isomorphic to each other? (a) R3 (b) M2×2 (c) P3 (d) R4 (e) P2