Real and Complex Numbers - Exercise 1.2 - Mathematics 9th

Mathematics 9th - Exercise 1.2

REAL AND COMPLEX NUMBERS

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Question 1:

Recognize the properties of real numbers used in the following:

(i)

$$\frac{1}{2} + \frac{2}{3} = \frac{2}{3} + \frac{1}{2}$$

Solution:

$$a + b = b + a$$

Commutative property of addition