does anyone know the answer!!!
test your knowledge!!!
2006-06-30 10:24:32 · 32 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
That's what they call the imaginary number, i. i is being used greatly in complex numbers. Complex numbers are those 4+7i type of thing. And complex numbers are being used greatly in physics or applied math. I still remember those days when I had to take that Complex Variables class (I was a math major) in my senior year in university.
2006-06-30 10:38:51 · answer #1 · answered by knitting guy 6 · 3⤊ 0⤋
1
2006-06-30 10:30:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I'm late in getting to answer this easy question for those who have had College Math or Advanced Math in HS. Many others knew the correct answer which is sqrt(-1)= i, where i=imanginary part of the Complex number in the Complex Number System. I suppose the others haven't become familiar with Complex Numbers yet. In the Number System, there are Real Numbers and Complex Numbers. The Real Number Syatem is a subset of the Complex Number System.
All Complex Numbers are displayed as the following: z= x + i y, where x, y are scalers and i is the sqr root of -1. z is a Complex Number. It is conventional to use z to represent a Complex Number. Also, z can be represented as:
z= r * exp(i*theta) where r is a scaler, r = sqrt(x²+y²) and the exp(i*Theta)=cos(Theta)+ i* sin(Theta). There are many Courses available in Complex Numbers. Electrical Engineering is a field that uses Complex Numbers.
The people who answered that the sqrt(-1) couldn't exist were only correct if they are speaking about the Real Number System. Complex Numbers contain the Real Number System. So, for those who didn't know the answer to sqrt(-1) it is called i, an Imaginary Number. It is shown on an x-y graph where the y axis plots the i values & the x axis plots the real values of the Complex Number z=x+iy.
2006-06-30 11:08:20 · answer #3 · answered by JosyMaude 3 · 0⤊ 0⤋
Square root of any negative number is an imaginary number .In this case the the answer is i (iota), it's a complex number having a value equal to square root of -1.
2006-06-30 12:33:26 · answer #4 · answered by Aneeque 1 · 0⤊ 0⤋
Impossible there are not square roots for negative numbers.
By definition a square root is a number when multiplied by its self results in the original number. A negative times a negative is positive.
So... you can't find the square root of a negative number.
2006-06-30 10:31:28 · answer #5 · answered by Gregory B 3 · 0⤊ 0⤋
no1home2day is correct, it is the "imaginary" number, "i", which is created for that purpose of representing some number that would result in -1
Why? Because if you are to find a square root it must be the same number as itself, and if you multiply a negative by a negative you get a positive, and if you multiply a positive by a postitive you get a positive.
2006-06-30 10:30:08 · answer #6 · answered by too_live_forever 3 · 0⤊ 0⤋
-1
2006-06-30 10:29:34 · answer #7 · answered by jaq87a 1 · 0⤊ 0⤋
the square root of -1 is an imaginary number, or complex number and is often called i. imaginary numbers are very useful in mathematics and science and describe reality. you should be seeing them in middle to high school math
2006-06-30 10:32:09 · answer #8 · answered by darkhelmet 1 · 0⤊ 0⤋
It is an irrational number. The square root of -1 is itself.
2006-06-30 10:30:06 · answer #9 · answered by The One Line Review Guy 3 · 0⤊ 1⤋
square root of -1 is square root of -1 itself
2006-06-30 10:28:22 · answer #10 · answered by kalkmat 3 · 0⤊ 0⤋