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3 votes
Let z = 1 + 3i and w = −3 − 4i.

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The sum z + w is equal to −

i.

The sum w + z is equal to −2 −
i.

The result supports that complex number addition is
.

User Tarick
by
3.4k points

2 Answers

2 votes

Answer:

1.) -2 - 1i

2.) -2 - 1i

3.) commutative

Step-by-step explanation:

Got it right on edge

User Dersvenhesse
by
3.2k points
5 votes

Answer:

1.) -2 - 1i

2.) -2 - 1i

3.) commutative

Step-by-step explanation:

Given :

z = 1 + 3i

w = −3 − 4i

1.)

z + w :

1 + 3i + (-3 - 4i)

1 + 3i - 3 - 4i

1 - 3 + 3i - 4i

-2 - 1i

2.)

w + z

-3 - 4i + 1 + 3i

-3 + 1 - 4i + 3i

-2 - 1i

z + w = w + z

Hence, come number addition are commutative

User Akito
by
3.6k points