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#1 2006-11-01 00:32:43

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Simple Complex Simplifying

I haven't actually learnt anything about the term 'i' in class, but I know how to simplify surds, and that i = √(-1), so can you tell me if i've got the right idea with these?

and

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#2 2006-11-01 01:08:21

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: Simple Complex Simplifying

Toast wrote:

I haven't actually learnt anything about the term 'i' in class, but I know how to simplify surds, and that i = √(-1), so can you tell me if i've got the right idea with these?

and

Both fully correct.tongue


Bad speling makes me [sic]

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#3 2006-11-01 03:05:41

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Re: Simple Complex Simplifying

Hmmm seems pretty simple, is that all there is to know about 'i'?

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#4 2006-11-01 04:17:55

saudi_boy
Member
Registered: 2006-11-01
Posts: 41

Re: Simple Complex Simplifying

hiiiiiiiii

they are both correct..

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#5 2006-11-01 04:23:27

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: Simple Complex Simplifying

For practice, check out my exercise on simplifying i terms.

http://www.mathsisfun.com/forum/viewtopic.php?id=4643

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#6 2006-11-01 04:51:41

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: Simple Complex Simplifying

Toast wrote:

Hmmm seems pretty simple, is that all there is to know about 'i'?

Goodness gracious me no. There's still a ton of fun and exciting stuff to learn about.

Both of the things you had there were imaginary numbers. When you start working with reals and imaginaries put together to get complex numbers, that's when it starts getting really fun. And then you've got the modulus-argument form of complex numbers and all kinds of other wonderfully interesting things. So don't think that complex numbers are just about surd manipulation.


Why did the vector cross the road?
It wanted to be normal.

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#7 2006-11-01 09:28:15

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,711

Re: Simple Complex Simplifying

I hope to start some pages on complex numbers one day.

Going from Real to Complex is like going from the Number Line to Cartesian Coordinates. Almost exactly like that really.

So, you have just popped your head up from the number line along the y axis. Now you need to go explore.


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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