Respuesta :
The answer is...
D-(x + yi) × 1 = (x + yi)
I just took the test.
The expression that shows identity property of multiplication is (x+yi)×1=(x+yi), the correct option is D.
What is the identity property of multiplication?
According to the identity property of multiplication, the product of 1 and a number is the number itself.
The expressions in the question are
(X+yi)×z=(xz+yzi)
(x+yi)×0=0
(x+yi)×(z+wi)=(z+wi)×(x+yi)
(x+yi)×1=(x+yi)
The only expression that shows this property is (x+yi)×1=(x+yi).
To know more about Identity property of Multiplication
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