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# Why do you use complex numbers?

Updated: 4/28/2022

Wiki User

13y ago

Complex numbers can help visualize physical effects like the electromagnetic fields

around wires carrying current. Refer to the link below.

Wiki User

13y ago

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Q: Why do you use complex numbers?
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### Where you use complex number?

Complex numbers are the square roots of negative numbers. i.e. root -1 = i

yes it does

### What jobs use complex numbers?

electrical engineers and quantum mechanics use them.

Yes, many

### What jobs use complex numbers and how do they use them?

I suggest you read the Wikipedia article con complex numbers, specifically the section "Applications". One example is electrical engineering: in the case of AC, it helps to express all voltages, currents and impedances (equivalent of resistances) as complex numbers.

### What is complex math?

Complex math covers how to do operations on complex numbers. Complex numbers include real numbers, imaginary numbers, and the combination of real+imaginary numbers.

### How to solve synthetic division with complex numbers?

I'm not sure about how to use complex numbers to do this, but I've posted a link to a pretty neat website about Synthetic Division.

### When should you use foil for complex numbers?

when you multiply it with another polynomial

### How do quantum mechanics use complex numbers?

using contraction and expansion

### What is the relation of complex numbers to real numbers?

Complex numbers are a proper superset of real numbers. That is to say, real numbers are a proper subset of complex numbers.

### Could anyone list numbers not in the set of complex numbers?

No. Complex numbers is the highest set of numbers you can go, and there are no sets outside of complex numbers.

### Can you use a rule for multiplying by the reciprocal to divide whole numbers?

Yes. Integers, Real Numbers, and even Complex Numbers can as well.