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GL101: It's 2i!

The square root of a negative number will always be a a complex number, consisting of two parts, a real (Here it's 2) and an imaginary part (Represented by the i). A square root of a negative number will always be a number on the imaginary scale (Correct term?).

An easy way to calculate the square root of a negative number is to pretend the number is positive, then calculate the square root in a normal way ( 0,5(x0+x/x0) or a calculator). When you've got the square root of the positive number, you simply add the i behind and then you've got yourself the square root of a negative number.

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Explanation of formula and calculation.
WARNING If your head easily explodes you better not click the spoiler

SPOILER

Now...Do I get a cookie?

gamelover101 13 years ago

Well then, what is the square root of -4?

Hexicube 13 years ago

duh! -3*-3=9

gamelover101 13 years ago

Does that mean both -3 and 3 are square roots of 9?

edit: g2g

gameinsky 13 years ago

I's still a fail.

Hexicube 13 years ago

I was thinking of -2 so I pointed out there are 2

gameinsky 13 years ago

MARC2008 46 minutes ago
what is the square root of 4?

You didn't say are the square roots.

dingdong 13 years ago

Oh, i need to say all possible answers?

Hexicube 13 years ago

wronh it's 2 AND -2

dingdong 13 years ago

Its not 1. Then it must be 2

Hexicube 13 years ago

what is the square root of 4?
2p

Hexicube 13 years ago

garygoh the equasion isnt equal to anything there is nothing on the other side of the equal sign(there isnt even an equal sign)

Ferrari12 13 years ago

SuperDog: How did you make that last dot?

AK: Hehe. My profile says Norway. But that means I don't have awful grammar or spelling, which I'm very happy with :)

I wanted to live in the USA though. I think the US society fits me better. Atleast how the US society is presented to norwegians.

Here in Norway it's almost like if you're good at something, people hate you for it. That doesn't suit me very well.

The two sentences above might've been concidered so braggy people'd stop talking to me if I'd say it.

SuperDog 13 years ago

I use:

Decimal: (,)

Numbers 1000 and over: (.)

Multiplying: (x) or (â€¢)

AK 13 years ago

LOL Because his name is too long, and that's where a capital letter starts:
MartinfraKongsberg

Ferrari, I thought you were from the Us....

US:
Decimal=.
Places=,
Division=/
Multiplication=* or X

Ferrari12 13 years ago

We use a dot placed like the top dot in : for multiplying, but when we have to write on the computer we use "*" this ":" for dividing and "," for decimals. When there's a big number we use "." or spaces.

AK: Why do you use Martinfra in the score list? His name is Martin. His account name means "Martin from Kongsberg".

gameinsky 13 years ago

It's anoying when you use . for , and other stuff for multyplications, it's just confusing...
We have learned that we us , for deimals.
This is for multyplications .
And if we have a large number we just use spaces.
100 000 000

Garygoh884 13 years ago

.
My question is: It was known that the equation (3x-4.5)/(2.25-x^2) is 0/0 if x = 1.5. What is the value of 0/0? The answer is -1.

Why? Click the spoiler for an explanation!

SPOILER

gamelover101 13 years ago

Still, update first post?

Hexicube 13 years ago

but that one had no roots :O

AK 13 years ago

GL101 got the hard question that wasn't supposed to be asked. Since it was harder, it's worth more.

I'll update tommorow.

gamelover101 13 years ago

But, you can't divide by 0! :O

Garygoh884 13 years ago

There is only one root of X, is -2.

My question is: It was known that the equation (3x-4.5)/(2.25-x^2) is 0/0 if x = 1.5. What is the value of 0/0? (10p)

Hexicube 13 years ago

the answer is equivilant to 0/0...

gamelover101 13 years ago

Update first post?

And for your question: x = -4

Hexicube 13 years ago

how does GL101 get 6

AK 13 years ago

Oops, wrong equation........

It was supposed to be X^2+4X+4....

So 6 points for GL101 and 4 for Joe45, he got the question wrong but got the real question right.

None until tomorrow.

gamelover101 13 years ago

xâ‰ˆ1.23606797749979?

Hexicube 13 years ago

AK it has no roots...
b^2=4
4*a*c=16
is 4>=16? no

joe45 13 years ago

-2????????????????????

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General

First post of the topic

AK 14 years ago

This is a game where you get points for answering math questions the quickest! The more points you get the smarter you are!

Here we go!
First question(1p)

6-2=?

SCOREBOARD:
SimonM:50
MARC2008/Hexicube:41
THe NiNJa:37
Im:33
Martinfra:31
Ferrari12:30
Joe45:27
Allyally:17
Sillius:8
Flame22:7
SuperDog:7
Gamelover101:6
Dingdong:5
Gameinsky:5
Garygoh884:3
Gundu:3
Lololol:2
MatthijsM:2
Rocky:2
Demonicyoshi:1
PineappleDude:1
Zodiac:1

SMART(50-149)
SimonM

SUPERSMART(150-299)

GENIUS(300+)

Oh yes, and because I can't post it anywhere else:

DELTALEAGUE AMMO DEPOSITRY

Leader: AK

Guns:

SPOILER

Vehicles:

SPOILER