Answer:
Properties used here are:
A. Commutative property.
C. Associative property
Step-by-step explanation:
Given the expression:
(7+2i) + (4+3i)
(7+ 2i) + 4 + 3i
According to associative property:
a + (b + c) = (a + b) + c
7 + (2i + 4) + 3i
Using commutative property:
a + b = b + a
7 + (4 + 2i) + 3i
(7 + 4) + (2i + 3i)
Simplify:
11 + 5i
So, we use Commutative & Associative Property.
That's the final answer.
The algebraic properties we use for the expression are; Options A and B.
We are given the complex numbers expression as;
(7 + 2i) + (4 + 3i) = (7 + 4) + (2i + 3i) = 11 + 5i
Associative property of algebra denotes that;
a + (b + c) = (a + b) + c
Thus, that applies to the question.
Commutative property denotes that;
a + b = b + a
Thus, this applies to our question as well
Therefore we conclude that we use Commutative & Associative Property.
Read more about Algebraic Properties at; https://brainly.com/question/549862
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