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# What does 8i mean?

+6
5992
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What does 8i mean?

Jul 10, 2014

#3
+267
+8

I believe it means the imaginary number. It could however just be any number as x or n or y.

Imaginary number is what you get when you take the square root of negative numbers since no actual number when squared gives a negative result, people made up a number and the name imaginary numbers sticked to it. I is the imaginary unit number but could also stand for what I believe is the unit matrix which has 1's across the diagonal and 0's everywhere else.

I assume it's imaginary number that the context is meaning. 8i could be the square root of -64

i^2 = -1

This makes some mathematics easier, even though we don't actually know what i itself is, it is unreal.

For example: What is the square root of -16?

The answer would be 4i since sqrt(-16)=sqrt(-1) * sqrt(16)

Which therefore gives us i(since i^2 is -1) and 4(because sqrt(16) is 4)

Then we end up with i * 4 which can just be written as 4i.

Hope I helped!

Jul 10, 2014

#1
+146
+3

that all depends on the context of the question from which it originated

Jul 10, 2014
#2
+8260
+3

Good answer. I go with snips3s.

Jul 10, 2014
#3
+267
+8

I believe it means the imaginary number. It could however just be any number as x or n or y.

Imaginary number is what you get when you take the square root of negative numbers since no actual number when squared gives a negative result, people made up a number and the name imaginary numbers sticked to it. I is the imaginary unit number but could also stand for what I believe is the unit matrix which has 1's across the diagonal and 0's everywhere else.

I assume it's imaginary number that the context is meaning. 8i could be the square root of -64

i^2 = -1

This makes some mathematics easier, even though we don't actually know what i itself is, it is unreal.

For example: What is the square root of -16?

The answer would be 4i since sqrt(-16)=sqrt(-1) * sqrt(16)

Which therefore gives us i(since i^2 is -1) and 4(because sqrt(16) is 4)

Then we end up with i * 4 which can just be written as 4i.

Hope I helped!

Quazars Jul 10, 2014
#4
+11912
+3

i think u will have to decide again DragonSlayer before going with snip3s!

Jul 10, 2014
#5
+8260
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You don't know, ROSEALA!

Jul 10, 2014
#6
+11912
+3

First of all im Rosala!and i dont know whom ur talking to!

Jul 10, 2014
#7
+8260
+3

You like roses, right?

Jul 10, 2014
#8
+11912
+3

yes i do!

Jul 10, 2014
#9
+267
+3

I see what you did there. It was a great pun for REAL.

Jul 10, 2014
#10
+8260
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Then what's the problem with ROSEALA? You don't call me Slayer, but Dragon, right?

Same problem, ROSEALA!

Jul 10, 2014
#11
+11912
+3

i dont like ROSEALA!its not part of my name but Dragon and Slayer is of urs!

Jul 10, 2014
#12
+8260
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Why do you hate that?

Jul 10, 2014
#13
+11912
+3

its a kind of ...................................!

i dont know but i just dont like it

Jul 10, 2014
#14
+8260
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It has rose in it!

Jul 10, 2014
#15
+267
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I just rose from my chair because of how off topic this conversation is going :)

Jul 10, 2014
#16
+11912
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if ur talking about Rosala!then yes!maybe it has rose in it and its a beautiful name!

Jul 10, 2014
#17
+8260
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Good one Quazars!

Jul 10, 2014
#18
+11912
+3

btw Quazars whom were u talking about!

Jul 10, 2014
#19
+8260
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Hahaha!

Jul 10, 2014
#20
+8260
+3

Answer my Math Test. Really fun!

Jul 10, 2014
#21
+11912
+3

NOOO!NOT AGAIN!

Jul 10, 2014
#22
+8260
+3

Why do you hate tests?

Jul 10, 2014
#23
+11912
+3

What points !i dont know anything!

yes i dont like tests especially math test!but u can take English if u want!i like that!

Jul 10, 2014