... value of A19) Show that A = −0110 satisfies A2 = -IBUSINESSMATHEMATICS Higher Secondary - First YearUntouchability is a sinUntouchability is a crimeUntouchability is inhumanTamilnaduTextbook ... −−563425731Here 1, -2, 5 are called main diagonal elements and 3, -2, 7 are called secondary diagonal elements.(vi) SCALAR MATRIXA Diagonal Matrix with all diagonal elements equal...