- #1
danni7070
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Homework Statement
Decide whether each map is an isomorphism (if it is an isomorphism then
prove it and if it isn’t then state a condition that it fails to satisfy).
Homework Equations
f : M2×2 ---- P^3 given by:
a b
c d --- c + (d + c)x + (b + a)x^2 + ax^3
The Attempt at a Solution
Ok, I know that map is isomorph if it is one-to-one and onto.
I know it is one-to-one but I'm having problems showing that it is onto because I get confused using polynomials!
Can somebody give me a hint?