I guessed f(a)=a2 and f(a)=0, but have no idea how to get to the solutions in a good way.
Edit: I did what was suggested:
from a=b=0
f(0)=0
The function is even, because from b=−a
f(2a2)=f(−2a2).
I guessed f(a)=a2 and f(a)=0, but have no idea how to get to the solutions in a good way.
Edit: I did what was suggested:
from a=b=0
f(0)=0
The function is even, because from b=−a
f(2a2)=f(−2a2).
I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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