Question

Let x = a + bi and y = c + di and z = f + gi Which statements are true? Check all of the boxes that apply. x + y = y + x (x × y) × z = x × (y × z) x – y = y – x (x + y) + z = x + (y + z) (x – y) – z = x – (y – z)

Answer 1

the correct ones are:

A, B, D

hope this helps! :o)

Answer 2

The usual rules of addition and multiplication apply to complex numbers as well as to real numbers. The true statements are ...

• x + y = y + x  . . . . . . . . . . . . . . . commutative property of addition
• (x × y) × z = x × (y × z) . . . . . . . . associative property of multiplication
• (x + y) + z = x + (y + z) . . . . . . . . associative property of addition