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Additive identity = 0Multiplicative identity = 1.
No. A scalar matrix is a diagonal matrix whose main diagonal elements are the same. Only if the diagonal elements are all 1 is it an identity matrix.
For addition, 0 and for multiplication, 1.
this is the identity property of addition. 5 + 0 = 5 the 5 gets his idenity back the identity property of multiplication is 1 becuase 1 x 5 = 5