Which expression demonstrates the use lf the commutative property of addition in the first step of simplifying the expression (-1+i) + (21+5i) ?

Question

Mathematics

Aditya

8 March, 21:08

Which expression demonstrates the use lf the commutative property of addition in the first step of simplifying the expression (-1+i) + (21+5i) ?

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Cynthia Hoffman · Answer 1

Commutative property of addition is

a+b = b+a, that is if we change the positions of the numbers, the result is same. For e. g. 2 + 3 = 3+2.

In the given question, which is (-1+i) + (21+5i), we can use commutative property of addition to simplify it to the simpler form.

And the first step is to combine the like terms that is

(-1+21) + (i+5i). And tht's the required answer or that's the first step which is the commutative property of addition.