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**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 185

How many pairs of integers (b,c) satisfy the equation

I see you have graph paper.

You must be plotting something

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

So where are the imaginary numbers?

*Last edited by scientia (2013-02-07 23:41:46)*

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,548

hi scientia

Nice solution.

So where are the imaginary numbers?

Perhaps you have to imagine them.

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Hi ;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Hi bobbym

Those numbers you posted aren't imaginary either...

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Why not? What did I do wrong?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Those are not imaginary numbers. They are complex!

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Hmmmm, you got me. You are correct!

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Yes, yes I did.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Them there is fightin words where we all come from. - Gary Cooper

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 185

Compute |5-12i|+|3-4i|.

I see you have graph paper.

You must be plotting something

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**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 185

a) Suppose we graph every point z in the complex plane such that |z| = 4. What shape results?

b) What is the graph of the equation |z-2i| = 3

I see you have graph paper.

You must be plotting something

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,722

Hi cooljackiec;

|5-12i|+|3-4i| = 13 + 5 = 18

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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