) b!(@c!#bq!(j ;s " )h'#?. Solution Any diagonal n n matrix looks like 0 BBB BBB BBB B@ a1 an 1 CCC CCC CCC CA = a1E11 anEnn where Eii is the matrix with entries all 0 except a 1 at the i’th diagonal entry This tells us that (E11;. G H < H L K ?.
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a j cxg
h q cxg uae
e o p cxg
jbrcc p o cxg
cmvv cxg