What Is the Square Root of a Negative Value Called? : Math Instruction

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You can find the square root of a negative value in a very specific way. Find the square root of a negative value with help from a graduate in mathematics in this free video clip.

Expert: Marija Kero
Filmmaker: Victor Varnado

Series Description: Teaching mathematics and giving instructions requires you to keep a few important things in mind, like who you're teaching and what their current levels are. Get tips on math instruction with help from a graduate in mathematics in this free video series.

[Quetange]

Thank you! You're wonderful! Clear and to the point.

[kurzjames]

How does she write backwards like that?

[robertmcmurray]

Short and sweet! This was the third video I checked out, the shortest and the best! Sometimes you just don't need waffle. :-)

[mRUSSIA]

I use to teach math. Imaginary and complex numbers(a combination of real and imaginary numbers) are used extensively in some scientific and engineering disciplines. A good example would be electrical engineering where imaginary numbers are used extensively.

[chericha]

Hey, that was very helpful! Thanks Maria!

[Olysterz]

When do you use it ? In what context ? Why is it needed ?

[MegaThrilla]

Maybe you should have covered two examples.  -16 was nice because it is a perfect square.  What do you do when you have a number like square root of -5?  Thanks in advance, if anyone has a legitimate response. 

[olivier]

thank you for explaining it very easily. now I know what the imaginary number us

[missflowers]

It's a good video thank you, but I can't understand how i=Г-1, can you prove it please ?

[riyakhan]

Didn't understand anything . Still confused about the negative no.

[edwardverschraegen]

saying that i=sqrt(-1) is completely wrong. the only right way to make a definition of i is by saying i²=-1. a little example of why i=sqrt(-1) is wrong:

i=sqrt(-1) => i²=-1



so with this definition, i²=-1 and i²=1, which means our preposition, i=sqrt(-1), is wrong

[PuIePLaYaZ]

i always thought that the square root of a negative gives an error meaning there s no answer as it is not possible

[AyhanPiran]

I know this, I thought it was something different or a solution to negative square-roots
.

[Calthrax]

lol
The video is on finding square roots of negative numbers, which means that the radicand must be negative in order to make this video valid.
Bad comment.

[سارهعبدالمحسنرويشدالعنزي]

The positive times positive equals negative

[mattphorwich]

Beautiful and intelligent Lolz can you explain the infinite different sets of infinite to us and the mathematicians that contribute beautiful? <3 s God bless the omniverse and the multiverse!

[LegitMusic]

I don't know how she writes like that, I couldn't do it

[sukiratgrewal]

Where is she writing? Is she writing in reverse?

[PYTHAGORAS]

The square root of a negative number is called a Maths Error, period.
THIS IS NONSENSE

[WaterMan-sseb]

It’s nice to make up things to make a human brain feel better. But in reality this has no functional purpose in quantum or non quantum math