Answer Happy

Posted: **Tue May 10, 2022 6:59 am**

: Given By A Trace A That Is O La Let M2 Z Be The Set Of 2x2 Matrices With Integer Coefficients And Let O M2 Z 1 (21.5 KiB) Viewed 26 times

given by (A) = trace(A). That is o la Let M2(Z) be the set of 2x2 matrices with integer coefficients, and let Ø: M2(Z) → Z be [a b] = a + d. Prove or disprove that this is a ring dl homomorphism. = =