Question

hmm i want proof for i^2 = -1 why , how did get that , just for enjoyment so anyone help me ?

Answer 1

its an imaginary number

Answer 2

that's whats it called in math terms

Answer 3

that's what i stand for too.

Answer 4

yup i know but why and how we get this number

Answer 5

@ganeshie8

Answer 6

you cant get -1 from a exponent so what they do is that they just put an "i"

Answer 7

does: x^2 + 1 = 0 have a solution?

Answer 8

in R no but in C have solution ;p

Answer 9

lets talk about complex invention :3

Answer 10

x^2 = -1 is the solution; now can we come up with a consistent mathical philosophy with this concept? if so then it is valid, otherwise it is just a whimsical consequence.

Answer 11

For this reason I opened subject Mr.amistre 64

Answer 12

you cannot 'prove' that i^2 = -1, it is an axiom ; or definition that creates a consistent mathical philosophy.

Answer 13

when will be mathical philosophy and how @amistre64 ;p ?

Answer 14

:D its like saying prove that
e=something