Question

Let x = a + bi and y = c + di and z = f + gi

Answer 1

True statements:
a) x + y = y + x  ⇒ commutative property of addition
b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication
d) (x + y) + z = x + (y + z) ⇒ associative property of addition

False statements:
c) x - y = y - x  should be: x - y = - y + x
e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

Answer 2

Answer:

a    x + y = y + x

b ( x * y ) * z = x * (y * z)

d ( x + y ) + z = x + ( y + z )  

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Step-by-step explanation: